US Bridges

I-94/I-69 (wb) over EB I-94/I-69 on Ramp

Fair

St. Clair County, Michigan · Port Huron @ Plaza · Structure no. 000000000012762

Built
1992
33 years old, rebuilt 2000
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
21,619
2007 count
Owner
State
State Highway Agency

About this bridge

I-94/I-69 (wb) over EB I-94/I-69 on Ramp is a prestressed concrete stringer/multi-beam or girder carrying I-94/I-69 (wb) over EB I-94/I-69 on Ramp in St. Clair County, Michigan. It was built in 1992 and reconstructed in 2000, so it is 33 years old, younger 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 5 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 21,619 vehicles a day, roughly 14% of them trucks, projected to reach 18,498 by 2018. The structure is 100 ft (30.4 m) long and 120 ft wide.

Location

Open in Google Maps
CarriesI-94/I-69 (wb)
CrossesEB I-94/I-69 on Ramp
LocationPort Huron @ Plaza
RouteInterstate 94
CountySt. Clair County
StateMichigan
Coordinates42.99854, -82.43956
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.7 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span95 ft (28.9 m)
Deck width120 ft (36.5 m)
Roadway width68 ft (20.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,619 (2007)
Projected traffic18,498 by 2018
Trucks14%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-94/I-69 (wb) over EB I-94/I-69 on Ramp built?

It was built in 1992, making it 33 years old in 2025. It was reconstructed in 2000.

What condition is I-94/I-69 (wb) over EB I-94/I-69 on Ramp 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 October 2024.

How much traffic does I-94/I-69 (wb) over EB I-94/I-69 on Ramp carry?

About 21,619 vehicles per day (2007 count), of which roughly 14% are trucks.

How long is I-94/I-69 (wb) over EB I-94/I-69 on Ramp?

The structure is 100 ft (30.4 m) long with a longest span of 95 ft (28.9 m) and a deck 120 ft wide.

Who owns I-94/I-69 (wb) over EB I-94/I-69 on Ramp?

It is owned by the State Highway Agency.