US Bridges

County Road 500 over Little Two Hearted River

Good

Luce County, Michigan · 6 Mi. N. Junction M-123 · Structure no. 000000000005919

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
53 ft
1 main span
Daily traffic
30
2016 count
Owner
County
County Highway Agency

About this bridge

County Road 500 over Little Two Hearted River is a prestressed concrete box beam or girders - multiple carrying County Road 500 over Little Two Hearted River in Luce County, Michigan. It was built in 2001, so it is 24 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 2% of them trucks, projected to reach 180 by 2036. The structure is 53 ft (16.3 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road 500
CrossesLittle Two Hearted River
Location6 Mi. N. Junction M-123
RouteCounty Highway 500
Coordinates46.64566, -85.36323
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating79.3 US tons
Inventory rating47.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length53 ft (16.3 m)
Longest span52 ft (15.7 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2016)
Projected traffic180 by 2036
Trucks2%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Road 500 over Little Two Hearted River built?

It was built in 2001, making it 24 years old in 2025.

What condition is County Road 500 over Little Two Hearted River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

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

About 30 vehicles per day (2016 count), of which roughly 2% are trucks.

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

The structure is 53 ft (16.3 m) long with a longest span of 52 ft (15.7 m) and a deck 31 ft wide.

Who owns County Road 500 over Little Two Hearted River?

It is owned by the County Highway Agency.