US Bridges

14 Mile Road over ST Joseph River

Fair

Calhoun County, Michigan · 2 MI W of Tekonsha · Structure no. 000000000001387

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
130 ft
1 main span
Daily traffic
150
2021 count
Owner
County
County Highway Agency

About this bridge

14 Mile Road over ST Joseph River is a prestressed concrete box beam or girders - multiple carrying 14 Mile Road over ST Joseph River in Calhoun 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 fair condition with a lowest component rating of 5 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 165 by 2041. The structure is 130 ft (39.6 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries14 Mile Road
CrossesST Joseph River
Location2 MI W of Tekonsha
RouteCounty Highway 0
CountyCalhoun County
StateMichigan
Coordinates42.09048, -85.02049
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating107.1 US tons
Inventory rating64.3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length130 ft (39.6 m)
Longest span130 ft (39.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic165 by 2041
Trucks5%
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 14 Mile Road over ST Joseph River built?

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

What condition is 14 Mile Road over ST Joseph 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 September 2024.

How much traffic does 14 Mile Road over ST Joseph River carry?

About 150 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 14 Mile Road over ST Joseph River?

The structure is 130 ft (39.6 m) long with a longest span of 130 ft (39.6 m) and a deck 29 ft wide.

Who owns 14 Mile Road over ST Joseph River?

It is owned by the County Highway Agency.