US Bridges

US-23SB I-94BL over Packard RD

Poor

Washtenaw County, Michigan · In Ann Arbor (packard Rd) · Structure no. 000000000010866

Built
1962
63 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
137 ft
3 main spans
Daily traffic
39,120
2007 count
Owner
State
State Highway Agency

About this bridge

US-23SB I-94BL over Packard RD is a prestressed concrete stringer/multi-beam or girder carrying US-23SB I-94BL over Packard RD in Washtenaw County, Michigan. It was built in 1962, so it is 63 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 39,120 vehicles a day, roughly 10% of them trucks, projected to reach 35,876 by 2018. The structure is 137 ft (41.7 m) long and 48 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS-23SB I-94BL
CrossesPackard RD
LocationIn Ann Arbor (packard Rd)
RouteU.S. Route 23
Coordinates42.24548, -83.68375
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating45.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length137 ft (41.7 m)
Longest span63 ft (19.2 m)
Deck width48 ft (14.6 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic39,120 (2007)
Projected traffic35,876 by 2018
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$374,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-23SB I-94BL over Packard RD built?

It was built in 1962, making it 63 years old in 2025.

What condition is US-23SB I-94BL over Packard RD in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does US-23SB I-94BL over Packard RD carry?

About 39,120 vehicles per day (2007 count), of which roughly 10% are trucks.

How long is US-23SB I-94BL over Packard RD?

The structure is 137 ft (41.7 m) long with a longest span of 63 ft (19.2 m) and a deck 48 ft wide.

Who owns US-23SB I-94BL over Packard RD?

It is owned by the State Highway Agency.