US Bridges

Baker RD over I-75

Good

Saginaw County, Michigan · 3.6 MI SE of M-46 · Structure no. 000000000009158

Built
2015
10 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
2 main spans
Daily traffic
1,530
2015 count
Owner
State
State Highway Agency

About this bridge

Baker RD over I-75 is a prestressed concrete stringer/multi-beam or girder carrying Baker RD over I-75 in Saginaw 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 1,530 vehicles a day, roughly 3% of them trucks, projected to reach 1,800 by 2035. The structure is 198 ft (60.4 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBaker RD
CrossesI-75
Location3.6 MI SE of M-46
RouteCounty Highway 2004
Coordinates43.3652, -83.86751
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.4 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadGreater than HL 93
Structure length198 ft (60.4 m)
Longest span97 ft (29.7 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,530 (2015)
Projected traffic1,800 by 2035
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 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 Baker RD over I-75 built?

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

What condition is Baker RD over I-75 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 August 2023.

How much traffic does Baker RD over I-75 carry?

About 1,530 vehicles per day (2015 count), of which roughly 3% are trucks.

How long is Baker RD over I-75?

The structure is 198 ft (60.4 m) long with a longest span of 97 ft (29.7 m) and a deck 43 ft wide.

Who owns Baker RD over I-75?

It is owned by the State Highway Agency.