US Bridges

Tittabawassee Road over Swan Creek

Fair

Saginaw County, Michigan · 0.3 MI East of Gleaner · Structure no. 000000000009227

Built
1991
34 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
150 ft
3 main spans
Daily traffic
3,118
2011 count
Owner
County
County Highway Agency

About this bridge

Tittabawassee Road over Swan Creek is a prestressed concrete box beam or girders - multiple carrying Tittabawassee Road over Swan Creek in Saginaw County, Michigan. It was built in 1991, so it is 34 years old, younger 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 3,118 vehicles a day, roughly 7% of them trucks, projected to reach 3,274 by 2021. The structure is 150 ft (45.7 m) long and 37 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesTittabawassee Road
CrossesSwan Creek
Location0.3 MI East of Gleaner
RouteCounty Highway 7333
CountySaginaw County
StateMichigan
Coordinates43.48146, -84.14476
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span50 ft (15.2 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,118 (2011)
Projected traffic3,274 by 2021
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Tittabawassee Road over Swan Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Tittabawassee Road over Swan Creek 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 August 2023.

How much traffic does Tittabawassee Road over Swan Creek carry?

About 3,118 vehicles per day (2011 count), of which roughly 7% are trucks.

How long is Tittabawassee Road over Swan Creek?

The structure is 150 ft (45.7 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.

Who owns Tittabawassee Road over Swan Creek?

It is owned by the County Highway Agency.