US Bridges

County Line RD over Webb Creek

Good

Shiawassee County, Michigan · 3.3 MI S of Lennon · Structure no. 000000000009881

Built
1994
31 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
367
1998 count
Owner
County
County Highway Agency

About this bridge

County Line RD over Webb Creek is a concrete culvert carrying County Line RD over Webb Creek in Shiawassee County, Michigan. It was built in 1994, so it is 31 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 367 vehicles a day, projected to reach 660 by 2018. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCounty Line RD
CrossesWebb Creek
Location3.3 MI S of Lennon
RouteCounty Highway 0
CountyShiawassee County
StateMichigan
Coordinates42.93595, -83.92939
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating53.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic367 (1998)
Projected traffic660 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 County Line RD over Webb Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is County Line RD over Webb Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does County Line RD over Webb Creek carry?

About 367 vehicles per day (1998 count).

How long is County Line RD over Webb Creek?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns County Line RD over Webb Creek?

It is owned by the County Highway Agency.