US Bridges

Mission Road over Little Salt River

Good

Isabella County, Michigan · Lincoln Twp Sec 22-23 · Structure no. 000000000013237

Built
2003
22 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
150
2004 count
Owner
County
County Highway Agency

About this bridge

Mission Road over Little Salt River is a concrete culvert carrying Mission Road over Little Salt River in Isabella County, Michigan. It was built in 2003, so it is 22 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, projected to reach 271 by 2024. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMission Road
CrossesLittle Salt River
LocationLincoln Twp Sec 22-23
RouteCounty Highway 0
Coordinates43.50518, -84.76721
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2004)
Projected traffic271 by 2024
Trucks0%
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

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 Mission Road over Little Salt River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Mission Road over Little Salt River 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 May 2024.

How much traffic does Mission Road over Little Salt River carry?

About 150 vehicles per day (2004 count).

How long is Mission Road over Little Salt River?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Mission Road over Little Salt River?

It is owned by the County Highway Agency.