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GAO-02-595R: 

United States General Accounting Office: 
Washington, DC 20548: 

April 22, 2002: 

The Honorable John C. Conyers: 
The Honorable Carolyn C. Kilpatrick: 
House of Representatives: 

Subject: Customs and INS: Information on Inspection, Infrastructure, 
Traffic Flow, and Security Matters at the Detroit Port of Entry: 

In your November 6, 2001, letter, you expressed concern about the post-
September 11 environment of heightened security along our nation's 
borders, particularly regarding passenger and cargo delays at the two 
Detroit Port of Entry land-border crossings. As agreed with your 
offices, we obtained information on U.S. Customs Service and 
Immigration and Naturalization Service (INS) inspection resources, 
traffic flow patterns, inspection infrastructure issues, security 
issues, and potential long-term solutions and options to increase 
traffic flow and enhance security at the bridge and tunnel.
On February 20, 2002, we briefed your offices on the results of our 
review. This report transmits the material from that briefing. 

Background: 

The Detroit area has two land-border crossings: the Ambassador Bridge 
and the Detroit-Windsor Tunnel between Detroit, Michigan, and Windsor, 
Ontario. Daily, thousands of cars and trucks cross over the bridge or 
use the tunnel. Fiscal year 2001 traffic volumes over the bridge 
averaged approximately 10,800 passenger vehicles and 4,300 trucks each 
day, and the tunnel averaged about 11,600 passenger vehicles and 240 
trucks each day. Trade values between the United States and Canada 
total about $1.2 billion per day, 27 percent of which is accounted for 
by merchandise crossing the Ambassador Bridge alone. Both the bridge 
and tunnel are operational 24 hours a day, 7 days a week. 

Summary: 

Immediately after September 11, Customs and INS increased the number 
and thoroughness of inspections and questioned all bridge and tunnel 
travelers. This effort resulted in truck wait times of over 10 hours 
in the first few days.[Footnote 1] In an effort to decrease wait 
times, Customs and INS extended shifts, curtailed vacations, and 
brought in additional staff and obtained assistance from the National 
Guard and local law enforcement. By the end of October, wait times had 
generally been reduced to about 20 minutes. However, Customs officials 
and bridge and tunnel officials said that delays occur for other 
reasons, such as a limited number of bridge and tunnel lanes, too few 
inspection booths, and various choke points, such as the bridge cargo 
inspection plaza on the U.S. side. Increased security to both 
structures was also implemented. Among the actions taken, bridge and 
tunnel officials stopped allowing vehicles from queuing up on the 
bridge or inside the tunnel. The vehicles are now held at either end 
of the facilities until backups have diminished before they are 
allowed to cross the bridge or use the tunnel. 

Balancing enforcement of border security and facilitating travel and 
commerce is a major challenge for Customs and INS inspectors assigned 
to our borders. Some solutions are planned to be implemented to help 
reduce traffic wait times. For example, Customs and INS expect to 
increase personnel. According to the bridge and tunnel company 
officials, long-term enhancements are possible at both locations. For 
example, the Detroit International Bridge Company, a private company 
that owns the bridge, also owns land near the bridge that could be 
used for expanded inspection space on the U.S. side of the border. 
Company officials said, however, that negotiations with the General 
Services Administration (GSA)[Footnote 2] for one parcel of land have 
been unsuccessful. Also, according to tunnel company officials, the 
city of Detroit owns unused land adjacent to the tunnel that could 
possibly be used to expand inspection facilities. However, no 
negotiations had been completed at the time of our review. 

A plan to make the border more secure without impeding travel flow and 
trade has been agreed to in principle by the U.S. and Canadian 
governments. This plan is the Canada-U.S. Smart Border Declaration, 
which was signed on December 12, 2001, by the Office of Homeland 
Security Director and the Canadian Minister of Foreign Affairs The 
plan focuses on four primary areas: the secure flow of people; the 
secure flow of goods; secure infrastructure; and information sharing 
in the enforcement of these objectives. The plan has listed 30 items 
for action to improve border security and traffic flow. Many of the 
officials we interviewed have suggested solutions for consideration 
that they believe would facilitate the movement of traffic across the 
border and maintain security of the bridge and tunnel. 

Besides increasing personnel and improving technology to expedite the 
flow of traffic, officials are also considering other procedures to 
improve traffic flow and security. These include pre-approval of low-
risk traffic and reverse inspections. Pre-approved low-risk traffic 
would pass through thus allowing for inspection efforts to concentrate 
on high-risk traffic Reverse inspections would involve U.S. inspectors 
clearing cargo and travelers in Canada and vice-versa. Currently, 
vehicles leaving Canada are not inspected until they reach the U.S. 
side of the border. Inspections, under this plan, would be performed 
before trucks and travelers cross the bridge or enter the tunnel 
instead of afterwards. However, proposals such as reverse inspections 
are not without concerns and issues, and these are being discussed at 
high U.S. and Canadian government levels. 

Scope and Methodology: 

To obtain information, we visited the Ambassador Bridge and Detroit-
Windsor Tunnel from January 28 to January 31, 2002, and obtained pre-
and post-September 11 Customs and INS workload data. We met with 
Customs and INS officials at their headquarters in Washington, D.C., 
and in Detroit; bridge and tunnel operators; Detroit, Windsor, and 
Canadian Chambers of Commerce officials; auto industry officials; and 
Canadian Consulate officials. Overall, our work was conducted from 
December 2001 to February 2002 in accordance with generally accepted 
government auditing standards. 

The enclosed slides contain additional details on Customs and INS 
resources, traffic volume at the ports of entry, security issues, and 
proposals for long-term solutions. We provided Customs and INS with a 
draft of the slides and incorporated their comments as appropriate. As 
agreed with your offices, this report concludes our work on the 
Detroit Port of Entry border crossings. 

Copies of this report are available to other interested parties. This 
report will also be available on GAO's home page at [hyperlink, 
http://www.gao.gov]. 

If you have any questions, please contact me at (202) 512-8777 or by e-
mail at stanar@gao.gov or Darryl W. Dutton, Assistant Director, at 
(213) 8301000, or by e-mail at duttond@gao.gov. Key contributors to 
this report were Holly Ciampi, Cheryl L. Gordon, Bonnie D. Hall, and 
Maria Romero. 

Signed by: 

Richard M. Stana: 
Director, Justice Issues: 

Enclosure: 

[End of section] 

Enclosure: Areas of Interest Concerning Detroit Port of Entry: 

Briefing of Results of Work Requested by: 

Representative Carolyn C. Kilpatrick: 
Representative John C. Conyers: 

February 20, 2002: 

Objectives: 

To provide information on the following areas of interest
concerning the Detroit Port of Entry specifically: 

* Customs and Immigration and Naturalization Service (INS) inspection 
resources. 

* Traffic flow patterns. 

* Inspection infrastructure issues. 

* Security issues. 

* Long-term solutions and options to increase traffic flow
and enhance security. 

Scope: 

* Ambassador Bridge and Detroit-Windsor Tunnel. 

Methodology: 

* Obtained pre- and post-September 11 Customs and INS
workload data when available. 

* Met with Customs and INS officials; bridge and tunnel
operators; Detroit, Windsor, and Canadian Chambers of
Commerce; auto industry officials; and Canadian Consulate
officials. 

Background: 

United States and Canada are the world's largest trading partners: 

* Value of trade about $1.2 billion per day. 

* 27 percent of all merchandise trade crosses the Ambassador Bridge. 

FY 2001 average traffic volume: 

* Bridge — 4,300 trucks; 10,800 passenger vehicles per day. 

* Tunnel — 240 trucks; 11,600 passenger vehicles per day. 

* Both bridge and tunnel operate 24 hours, 7 days a week. 

(See chart on page 9) 

Figure: Number of Vehicles Processed at Detroit Border Crossings FYs 
1997-2001: 

[Refer to PDF for image: multiple line graph] 

Graph depicts the following: 

Ambassador Bridge/Passenger; 
Ambassador Bridge/Cargo; 
Detroit-Windsor Tunnel/Passenger and Cargo. 

Note: Passenger includes cars and buses. 

[End of figure] 

Figure: Number of Customs Inspectors On-Board at Bridge and Tunnel 
Border Crossings Prior to September 11: 

[Refer to PDF for image: multiple line graph]

Date: October 13-26, 1996; 
Total: 70; 
Full-time: 61; 
Part-time: 5; 
Supervisors: 2. 

Date: October 12-25, 1997; 
Total: 79; 
Full-time: 70; 
Part-time: 7; 
Supervisors: 2. 

Date: October 11-24, 1998; 
Total: 70; 
Full-time: 59; 
Part-time: 9; 
Supervisors: 2. 

Date: October 10-23, 1999; 
Total: 77; 
Full-time: 65; 
Part-time: 9; 
Supervisors: 3. 

Date: October 8-21, 2000; 
Total: 76; 
Full-time: 61; 
Part-time: 12; 
Supervisors: 3. 

Date: August 12-25, 2001; 
Total: 73; 
Full-time: 56; 
Part-time: 12; 
Supervisors: 5. 

[End of figure] 

Figure: Average Number of INS Inspectors On-Board at Bridge and Tunnel 
Border Crossings: 

[Refer to PDF for image: multiple line graph] 

FY: 1999; 
Total: 67; 
Full-time: 55; 
Part-time: 12; 
Supervisors: 8. 

FY: 2000; 
Total: 64; 
Full-time: 54; 
Part-time: 10; 
Supervisors: 8. 

FY: 2001; 
Total: 62; 
Full-time: 52; 
Part-time: 10; 
Supervisors: 8. 

[End of figure] 

Customs' response to September 11 events and supplemental resources. 

Increased examinations and questioning of all travelers at
bridge and tunnel. 

73 inspection staff on board supplemented by: 

* Increased overtime (inspectors and supervisors work 12-hour shifts) 
and curtailed vacations. 

* 40 inspectors from airport and elsewhere. 

* 12 administrative personnel. 

* About 21 National Guard soldiers. 

* Local law enforcement volunteers. 

* About 26 inspectors from other ports for temporary duty (TDY). 

INS's response to September 11 events and supplemental resources: 

* 2 inspectors per lane. 

* All car trunks and glove compartments checked. 

* All passengers asked for identification. 

* 62 inspection staff on board supplemented by: 

- Increased overtime (inspectors and supervisors work 12-hour shifts) 
and curtailed vacations. 

- Other INS personnel from adjudications and investigations. 

- Local law enforcement volunteers. 

- 16 Border Patrol agents detailed to bridge and tunnel for 60 days to 
conduct primary inspections, traffic management, and port security. 

Recent adjustments to staffing as of January 31, 2002: 

Customs: 

* Returned inspectors and administrative personnel to normal duties. 

* Returned to 8-hour shifts. 

* Reduced overtime hours: 
- some inspectors nearing overtime cap. 

* Allowed limited vacations. 

INS: 

* Returned inspectors and other personnel to normal duties.

* Reduced inspector shifts to 10 hours. 

* Reduced overtime hours: 
- some inspectors nearing overtime cap. 

* Allowed limited vacations. 

Customs/INS additional resources planned for the bridge and tunnel: 

Customs: 

* 70 new inspectors. 

* 2 canine enforcement teams. 

* Recruiting process currently ongoing. 

* Goal: to have new hires operable by September 30, 2002. 

INS: 

* 49 new inspectors (additional inspectors possible). 

* Recruiting process currently ongoing. 

* Goal: to have new hires operable by December 2002. 

Traffic Flow Patterns: 

Traffic flow prior to September 11: 

* No record of traffic wait times was maintained. 

* Although not documented, back-ups during peak commute hours did 
exist. 

Traffic flow after September 11:
* Truck wait times of over 10 hours from September 11 to 14. 

* Wait times decreased to generally less than 20 minutes by the end of 
October 2001. 

(Refer to pages 17 and 18.) 

Figure: Passenger and Truck Maximum Wait Times at Detroit-
Windsor Tunnel: September 14—December 31, 2001: 

[Refer to PDF for image: line graph] 

Wait time in minutes plotted for all dates. 

[End of figure] 

Figure: Truck Maximum Wait Times at Ambassador Bridge: September 14-
December 31, 2001; 

[Refer to PDF for image: line graph] 

Wait time in minutes plotted for all dates. 

Note: For the two delay spikes that occurred after the end of October: 
November 8, 2001, was caused by vehicles being held in a staging area 
to prevent them from sitting on the bridge, and the other delay in 
November could not be explained by a Customs official. 

[End of figure] 

Inspection Infrastructure Issues: 

Bridge and tunnel infrastructure concerns: 

* Too few lanes: 

- 2 each way on the bridge; 

- 1 each way in the tunnel. 

* Inspection plaza has too few inspection booths, particularly on U.S. 
side of bridge and tunnel (e.g., 6 booths for trucks on U.S. side of 
bridge vs. 10 booths on Canadian side). 

* Choke points in traffic flow, particularly at bridge cargo 
inspection plaza on U.S. side. 

* Little room for short-term expansion of limited inspection 
facilities, particularly on the U.S. side. 

Figure: Ambassador Bridge Cargo Inspection Plaza: 

[Refer to PDF for image: photograph] 

Specifically labeled in the photograph: 

Ambassador Bridge; 
Detroit River; 
Existing Customs Plaza; 
I-58 and I-75. 

[End of figure] 

Long-term enhancements to bridge and tunnel infrastructure: 

* Expand bridge inspection plaza on U.S. side: 

- Detroit International Bridge Company owns land for expansion; 

- Negotiations with General Services Administration for one parcel of 
land have failed. 

* Expand tunnel inspection plaza: 

- City of Detroit owns unused land adjacent to the tunnel. 

Security Issues: 

Bridge and tunnel enhancements to increase security. 

Private contractor conducted bridge and tunnel threat
assessments immediately after September 11. As a result: 

* Bridge Company installed fencing to contain areas around the 
bridge's base and hired private security; Windsor Police Department 
provides tunnel security. 

* Vehicles are not allowed to queue up on the bridge or inside the 
tunnel. 

Long-Term Solutions and Options to Increase Traffic Flow and
Enhance Security: 

The following solutions and options come from government,
nongovernment, and private industry: 

* Change the system for license plate reading from manual to automated 
(similar to equipment on southern border). 

- Currently have no automation: license plates must be manually keyed 
in and read backwards through a mirror. 

* Expand NEXUS (two-way movement of pre-approved travelers): item #3 
in the Canada-U.S. Smart Border Declaration. Is currently being pilot-
tested at Sarnia-Port Huron. 

* Permanent truck x-ray; have mobile one now on U.S. side.

* Pre-examination of cargo at plants of origin. 

* Pre-clearance/reverse inspections: 

- Item #15 in the Canada-U.S. Smart Border Declaration would have U.S. 
inspectors clear cargo on Canadian side and vice-versa. 

- Nationalistic and sovereignty problems with pre-clearance/reverse 
inspections are being discussed at high U.S. and Canadian levels. 

- Pre-clearance/reverse inspection expansion capabilities exist per 
bridge and tunnel officials. 

Some opinions on reverse inspections: 

* INS is concerned about reverse inspections: 

- lack of secure road between inspection point and bridge. 

- firearm issue in Canada: Canada does not allow inspectors at border 
to carry firearms, but INS inspectors carry firearms. 

* Customs is open to discussing reverse inspection ideas. 

* Bridge company will not invest in enhanced facilities without reverse
inspection commitment, which addresses the traffic flow choke points. 

* Detroit, Windsor, and Canada Chambers of Commerce advocate reverse 
inspections; the Canadian Consulate is open to discussing reverse 
inspection ideas. 

[End of section] 

Footnotes: 

[1] Prior to September 11, 2001, no data exist about extent of delays. 

[2] GSA is generally responsible for acquiring, leasing, and 
maintaining property for use by U.S. government agencies. 

[End of section]