US Bridges

Carpenter RD over I-94

Fair

Washtenaw County, Michigan · 0.1 MI E of US-23 · Structure no. 000000000010840

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
250 ft
2 main spans
Daily traffic
14,290
1996 count
Owner
State
State Highway Agency

About this bridge

Carpenter RD over I-94 is a steel stringer/multi-beam or girder carrying Carpenter RD over I-94 in Washtenaw County, Michigan. It was built in 1975, so it is 50 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 14,290 vehicles a day, roughly 3% of them trucks, projected to reach 16,434 by 2016. The structure is 250 ft (76.2 m) long and 74 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCarpenter RD
CrossesI-94
Location0.1 MI E of US-23
RouteCounty Highway 2006
CountyWashtenaw County
StateMichigan
Coordinates42.22463, -83.67993
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating86.4 US tons
Inventory rating51.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length250 ft (76.2 m)
Longest span127 ft (38.7 m)
Deck width74 ft (22.6 m)
Roadway width64 ft (19.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,290 (1996)
Projected traffic16,434 by 2016
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck replacement with only incidental widening
Estimated improvement cost$266,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Carpenter RD over I-94 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Carpenter RD over I-94 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Carpenter RD over I-94 carry?

About 14,290 vehicles per day (1996 count), of which roughly 3% are trucks.

How long is Carpenter RD over I-94?

The structure is 250 ft (76.2 m) long with a longest span of 127 ft (38.7 m) and a deck 74 ft wide.

Who owns Carpenter RD over I-94?

It is owned by the State Highway Agency.