US Bridges

Fitchburg Road over Cahaogan Creek

FairPosted for load

Ingham County, Michigan · 0.5 MI W of Fitchburg · Structure no. 000000000003859

Built
1956
69 years old
Condition
Fair
inspected March 2023
Type
Tee Beam
Concrete
Length
41 ft
1 main span
Daily traffic
400
2006 count
Owner
County
County Highway Agency

About this bridge

Fitchburg Road over Cahaogan Creek is a concrete tee beam carrying Fitchburg Road over Cahaogan Creek in Ingham County, Michigan. It was built in 1956, so it is 69 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, projected to reach 490 by 2027. The structure is 41 ft (12.5 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFitchburg Road
CrossesCahaogan Creek
Location0.5 MI W of Fitchburg
RouteCounty Highway 3316
CountyIngham County
StateMichigan
Coordinates42.43919, -84.28734
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating44.3 US tons
Inventory rating26.5 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length41 ft (12.5 m)
Longest span41 ft (12.5 m)
Deck width30 ft (9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2006)
Projected traffic490 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Fitchburg Road over Cahaogan Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Fitchburg Road over Cahaogan 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 March 2023.

How much traffic does Fitchburg Road over Cahaogan Creek carry?

About 400 vehicles per day (2006 count).

How long is Fitchburg Road over Cahaogan Creek?

The structure is 41 ft (12.5 m) long with a longest span of 41 ft (12.5 m) and a deck 30 ft wide.

Who owns Fitchburg Road over Cahaogan Creek?

It is owned by the County Highway Agency.