US Bridges

State RD over I-94

Fair

Washtenaw County, Michigan · S Limits Ann Arbor · Structure no. 000000000010835

Built
1972
53 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
227 ft
2 main spans
Daily traffic
30,883
2010 count
Owner
State
State Highway Agency

About this bridge

State RD over I-94 is a steel stringer/multi-beam or girder carrying State RD over I-94 in Washtenaw County, Michigan. It was built in 1972, so it is 53 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 30,883 vehicles a day, projected to reach 33,971 by 2025. The structure is 227 ft (69.2 m) long and 120 ft wide.

Location

Open in Google Maps
CarriesState RD
CrossesI-94
LocationS Limits Ann Arbor
RouteCity Street 2006
CountyWashtenaw County
StateMichigan
Coordinates42.23704, -83.73913
Functional classUrban Other Principal 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 geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating76.4 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length227 ft (69.2 m)
Longest span114 ft (34.7 m)
Deck width120 ft (36.7 m)
Roadway width118 ft (35.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,883 (2010)
Projected traffic33,971 by 2025
Trucks—
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$494,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was State RD over I-94 built?

It was built in 1972, making it 53 years old in 2025.

What condition is State 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 State RD over I-94 carry?

About 30,883 vehicles per day (2010 count).

How long is State RD over I-94?

The structure is 227 ft (69.2 m) long with a longest span of 114 ft (34.7 m) and a deck 120 ft wide.

Who owns State RD over I-94?

It is owned by the State Highway Agency.