US Bridges

Keinath HWY over Little Raisin S Branch

Fair

Lenawee County, Michigan · 0.2 MI N of Mcmahon RD · Structure no. 000000000013280

Built
1981
44 years old
Condition
Fair
inspected February 2024
Type
Culvert
Steel
Length
24 ft
2 main spans
Daily traffic
55
2004 count
Owner
County
County Highway Agency

About this bridge

Keinath HWY over Little Raisin S Branch is a steel culvert carrying Keinath HWY over Little Raisin S Branch in Lenawee County, Michigan. It was built in 1981, so it is 44 years old, younger 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.

It carries about 55 vehicles a day, projected to reach 100 by 2026. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesKeinath HWY
CrossesLittle Raisin S Branch
Location0.2 MI N of Mcmahon RD
RouteCounty Highway 0
CountyLenawee County
StateMichigan
Coordinates41.90866, -83.80391
Functional classRural 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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length24 ft (7.4 m)
Longest span10 ft (3.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2004)
Projected traffic100 by 2026
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$300,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Keinath HWY over Little Raisin S Branch built?

It was built in 1981, making it 44 years old in 2025.

What condition is Keinath HWY over Little Raisin S Branch 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 February 2024.

How much traffic does Keinath HWY over Little Raisin S Branch carry?

About 55 vehicles per day (2004 count).

How long is Keinath HWY over Little Raisin S Branch?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3.1 m).

Who owns Keinath HWY over Little Raisin S Branch?

It is owned by the County Highway Agency.