US Bridges

Tittabawassee Road over Tittabawassee River

Fair

Saginaw County, Michigan · 0.4 MI E of River Road · Structure no. 000000000009228

Built
1965
60 years old, rebuilt 2002
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
490 ft
7 main spans
Daily traffic
10,637
2021 count
Owner
County
County Highway Agency

About this bridge

Tittabawassee Road over Tittabawassee River is a steel stringer/multi-beam or girder carrying Tittabawassee Road over Tittabawassee River in Saginaw County, Michigan. It was built in 1965 and reconstructed in 2002, so it is 60 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 10,637 vehicles a day, roughly 10% of them trucks, projected to reach 19,788 by 2041. The structure is 490 ft (149.4 m) long and 49 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

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CarriesTittabawassee Road
CrossesTittabawassee River
Location0.4 MI E of River Road
RouteCounty Highway 7378
CountySaginaw County
StateMichigan
Coordinates43.48133, -84.09181
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.9 US tons
Inventory rating47.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length490 ft (149.4 m)
Longest span72 ft (22 m)
Deck width49 ft (14.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,637 (2021)
Projected traffic19,788 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Tittabawassee Road over Tittabawassee River built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2002.

What condition is Tittabawassee Road over Tittabawassee River 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 Tittabawassee Road over Tittabawassee River carry?

About 10,637 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Tittabawassee Road over Tittabawassee River?

The structure is 490 ft (149.4 m) long with a longest span of 72 ft (22 m) and a deck 49 ft wide.

Who owns Tittabawassee Road over Tittabawassee River?

It is owned by the County Highway Agency.