US Bridges

County RD 500 over Little Two Hearted River

Fair

Luce County, Michigan · 3 MI N of M-123 · Structure no. 000000000013385

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Culvert
Steel
Length
23 ft
1 main span
Daily traffic
150
2016 count
Owner
County
County Highway Agency

About this bridge

County RD 500 over Little Two Hearted River is a steel culvert carrying County RD 500 over Little Two Hearted River in Luce County, Michigan. It was built in 1985, so it is 40 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 150 vehicles a day, roughly 2% of them trucks, projected to reach 180 by 2036. The structure is 23 ft (7 m) long. If it were closed, the detour would be 49.7 mi (80 km).

Location

Open in Google Maps
CarriesCounty RD 500
CrossesLittle Two Hearted River
Location3 MI N of M-123
RouteCounty Highway 500
CountyLuce County
StateMichigan
Coordinates46.60577, -85.33915
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 alignment9: Superior to present desirable criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2016)
Projected traffic180 by 2036
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 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 County RD 500 over Little Two Hearted River built?

It was built in 1985, making it 40 years old in 2025.

What condition is County RD 500 over Little Two Hearted 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 October 2024.

How much traffic does County RD 500 over Little Two Hearted River carry?

About 150 vehicles per day (2016 count), of which roughly 2% are trucks.

How long is County RD 500 over Little Two Hearted River?

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

Who owns County RD 500 over Little Two Hearted River?

It is owned by the County Highway Agency.