US Bridges

Jefferson Street over Sycamore Creek

Fair

Ingham County, Michigan · In the City of Mason · Structure no. 000000000003960

Built
1975
50 years old
Condition
Fair
inspected November 2024
Type
Culvert
Steel
Length
30 ft
1 main span
Daily traffic
5,795
1996 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jefferson Street over Sycamore Creek is a steel culvert carrying Jefferson Street over Sycamore Creek in Ingham County, Michigan. It was built in 1975, so it is 50 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 5,795 vehicles a day, roughly 10% of them trucks, projected to reach 10,466 by 2016. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesJefferson Street
CrossesSycamore Creek
LocationIn the City of Mason
RouteCity Street 0
CountyIngham County
StateMichigan
Coordinates42.57092, -84.443
Functional classUrban Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating31.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span21 ft (6.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,795 (1996)
Projected traffic10,466 by 2016
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Jefferson Street over Sycamore Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is Jefferson Street over Sycamore 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 November 2024.

How much traffic does Jefferson Street over Sycamore Creek carry?

About 5,795 vehicles per day (1996 count), of which roughly 10% are trucks.

How long is Jefferson Street over Sycamore Creek?

The structure is 30 ft (9.1 m) long with a longest span of 21 ft (6.4 m).

Who owns Jefferson Street over Sycamore Creek?

It is owned by the City or Municipal Highway Agency.