US Bridges

Sevison Road over Fawn River

Fair

St. Joseph County, Michigan · 3 MI E of Constantine · Structure no. 000000000010344

Built
1983
42 years old
Condition
Fair
inspected November 2023
Type
Slab
Wood or Timber
Length
88 ft
4 main spans
Daily traffic
307
2021 count
Owner
County
County Highway Agency

About this bridge

Sevison Road over Fawn River is a wood or timber slab carrying Sevison Road over Fawn River in St. Joseph 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 307 vehicles a day, roughly 20% of them trucks, projected to reach 325 by 2041. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSevison Road
CrossesFawn River
Location3 MI E of Constantine
RouteCounty Highway 0
CountySt. Joseph County
StateMichigan
Coordinates41.83587, -85.60296
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.8 US tons
Inventory rating36.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 20
Structure length88 ft (26.8 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic307 (2021)
Projected traffic325 by 2041
Trucks20%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sevison Road over Fawn River built?

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

What condition is Sevison Road over Fawn River 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 2023.

How much traffic does Sevison Road over Fawn River carry?

About 307 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Sevison Road over Fawn River?

The structure is 88 ft (26.8 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns Sevison Road over Fawn River?

It is owned by the County Highway Agency.