US Bridges

Somerset Road over Williams Drain

Fair

Hillsdale County, Michigan · 0.3 Mile N of Hoxie Road · Structure no. 000000000003361

Built
1983
42 years old
Condition
Fair
inspected November 2024
Type
Culvert
Steel
Length
23 ft
2 main spans
Daily traffic
68
2014 count
Owner
County
County Highway Agency

About this bridge

Somerset Road over Williams Drain is a steel culvert carrying Somerset Road over Williams Drain in Hillsdale County, Michigan. It was built in 1983, so it is 42 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 68 vehicles a day, projected to reach 112 by 2038. The structure is 23 ft (7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesSomerset Road
CrossesWilliams Drain
Location0.3 Mile N of Hoxie Road
RouteCounty Highway 0
CountyHillsdale County
StateMichigan
Coordinates41.96103, -84.38178
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.6 US tons
Inventory rating59.6 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2014)
Projected traffic112 by 2038
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 Somerset Road over Williams Drain built?

It was built in 1983, making it 42 years old in 2025.

What condition is Somerset Road over Williams Drain 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 Somerset Road over Williams Drain carry?

About 68 vehicles per day (2014 count).

How long is Somerset Road over Williams Drain?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Somerset Road over Williams Drain?

It is owned by the County Highway Agency.