US Bridges

I-75 US-10 over CSX RR

Fair

Saginaw County, Michigan · 0.5 MI S of M-81 · Structure no. 000000000009156

Built
1961
64 years old, rebuilt 1999
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
137 ft
3 main spans
Daily traffic
47,480
2007 count
Owner
State
State Highway Agency

About this bridge

I-75 US-10 over CSX RR is a prestressed concrete box beam or girders - single or spread carrying I-75 US-10 over CSX RR in Saginaw County, Michigan. It was built in 1961 and reconstructed in 1999, so it is 64 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 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 47,480 vehicles a day, roughly 12% of them trucks, projected to reach 57,597 by 2018. The structure is 137 ft (41.7 m) long and 132 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-75 US-10
CrossesCSX RR
Location0.5 MI S of M-81
RouteInterstate 75
CountySaginaw County
StateMichigan
Coordinates43.44324, -83.89067
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length137 ft (41.7 m)
Longest span46 ft (14 m)
Deck width132 ft (40.2 m)
Roadway width125 ft (38.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,480 (2007)
Projected traffic57,597 by 2018
Trucks12%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
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-75 US-10 over CSX RR built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1999.

What condition is I-75 US-10 over CSX RR 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 September 2023.

How much traffic does I-75 US-10 over CSX RR carry?

About 47,480 vehicles per day (2007 count), of which roughly 12% are trucks.

How long is I-75 US-10 over CSX RR?

The structure is 137 ft (41.7 m) long with a longest span of 46 ft (14 m) and a deck 132 ft wide.

Who owns I-75 US-10 over CSX RR?

It is owned by the State Highway Agency.