US Bridges

Old Bridge Road over Thread Creek

FairPosted for load

Genesee County, Michigan · In Grand Blanc · Structure no. 000000000002863

Built
1960
65 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
26 ft
1 main span
Daily traffic
2,497
1993 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Bridge Road over Thread Creek is a steel culvert carrying Old Bridge Road over Thread Creek in Genesee County, Michigan. It was built in 1960, so it is 65 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 2,497 vehicles a day, projected to reach 2,000 by 2010. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOld Bridge Road
CrossesThread Creek
LocationIn Grand Blanc
RouteCity Street 0
CountyGenesee County
StateMichigan
Coordinates42.93129, -83.62627
Functional classUrban 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
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating23.6 US tons
Inventory rating17.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,497 (1993)
Projected traffic2,000 by 2010
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 Old Bridge Road over Thread Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Old Bridge Road over Thread 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 October 2024.

How much traffic does Old Bridge Road over Thread Creek carry?

About 2,497 vehicles per day (1993 count).

How long is Old Bridge Road over Thread Creek?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m).

Who owns Old Bridge Road over Thread Creek?

It is owned by the City or Municipal Highway Agency.