US Bridges

US-10 WB|M-25 NB over I-75 NB

Good

Bay County, Michigan · 1.5 MI W of Bay City · Structure no. 000000000000606

Built
2015
10 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
210 ft
2 main spans
Daily traffic
12,500
2009 count
Owner
State
State Highway Agency

About this bridge

US-10 WB|M-25 NB over I-75 NB is a prestressed concrete stringer/multi-beam or girder carrying US-10 WB|M-25 NB over I-75 NB in Bay County, Michigan. It was built in 2015, so it is 10 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 12,500 vehicles a day, roughly 5% of them trucks, projected to reach 13,750 by 2030. The structure is 210 ft (63.9 m) long and 62 ft wide.

CarriesUS-10 WB|M-25 NB
CrossesI-75 NB
Location1.5 MI W of Bay City
RouteU.S. Route 10
Coordinates43.59597, -83.94811
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating43.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length210 ft (63.9 m)
Longest span103 ft (31.4 m)
Deck width62 ft (19 m)
Roadway width59 ft (18 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,500 (2009)
Projected traffic13,750 by 2030
Trucks5%
Lanes on structure3
Traffic directionOne-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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US-10 WB|M-25 NB over I-75 NB built?

It was built in 2015, making it 10 years old in 2025.

What condition is US-10 WB|M-25 NB over I-75 NB 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 June 2023.

How much traffic does US-10 WB|M-25 NB over I-75 NB carry?

About 12,500 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is US-10 WB|M-25 NB over I-75 NB?

The structure is 210 ft (63.9 m) long with a longest span of 103 ft (31.4 m) and a deck 62 ft wide.

Who owns US-10 WB|M-25 NB over I-75 NB?

It is owned by the State Highway Agency.