US Bridges

Water ST over I-94 US Lanes

Good

St. Clair County, Michigan · 0.3 MI W of Port Huron · Structure no. 000000000010018

Built
2011
14 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
256 ft
3 main spans
Daily traffic
11,560
2010 count
Owner
State
State Highway Agency

About this bridge

Water ST over I-94 US Lanes is a prestressed concrete stringer/multi-beam or girder carrying Water ST over I-94 US Lanes in St. Clair County, Michigan. It was built in 2011, so it is 14 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 11,560 vehicles a day, roughly 10% of them trucks, projected to reach 13,600 by 2030. The structure is 256 ft (77.9 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesWater ST
CrossesI-94 US Lanes
Location0.3 MI W of Port Huron
RouteCounty Highway 2012
Coordinates42.99149, -82.45136
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating46.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length256 ft (77.9 m)
Longest span98 ft (29.8 m)
Deck width61 ft (18.6 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,560 (2010)
Projected traffic13,600 by 2030
Trucks10%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Water ST over I-94 US Lanes built?

It was built in 2011, making it 14 years old in 2025.

What condition is Water ST over I-94 US Lanes in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Water ST over I-94 US Lanes carry?

About 11,560 vehicles per day (2010 count), of which roughly 10% are trucks.

How long is Water ST over I-94 US Lanes?

The structure is 256 ft (77.9 m) long with a longest span of 98 ft (29.8 m) and a deck 61 ft wide.

Who owns Water ST over I-94 US Lanes?

It is owned by the State Highway Agency.