US Bridges

20 Mile Rd(marion) over US-131 NB

Fair

Osceola County, Michigan · 0.5 MI W of Tustin · Structure no. 000000000008550

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
152 ft
1 main span
Daily traffic
1,400
1996 count
Owner
State
State Highway Agency

About this bridge

20 Mile Rd(marion) over US-131 NB is a steel stringer/multi-beam or girder carrying 20 Mile Rd(marion) over US-131 NB in Osceola County, Michigan. It was built in 1975, so it is 50 years old, older 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 1,400 vehicles a day, roughly 3% of them trucks, projected to reach 9,999 by 1977. The structure is 152 ft (46.3 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries20 Mile Rd(marion)
CrossesUS-131 NB
Location0.5 MI W of Tustin
RouteCounty Highway 6782
CountyOsceola County
StateMichigan
Coordinates44.10276, -85.47206
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating100.8 US tons
Inventory rating60.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length152 ft (46.3 m)
Longest span152 ft (46.3 m)
Deck width44 ft (13.5 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (1996)
Projected traffic9,999 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 20 Mile Rd(marion) over US-131 NB built?

It was built in 1975, making it 50 years old in 2025.

What condition is 20 Mile Rd(marion) over US-131 NB 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 May 2024.

How much traffic does 20 Mile Rd(marion) over US-131 NB carry?

About 1,400 vehicles per day (1996 count), of which roughly 3% are trucks.

How long is 20 Mile Rd(marion) over US-131 NB?

The structure is 152 ft (46.3 m) long with a longest span of 152 ft (46.3 m) and a deck 44 ft wide.

Who owns 20 Mile Rd(marion) over US-131 NB?

It is owned by the State Highway Agency.