US Bridges

6 Mile RD over Pine River

Good

Lake County, Michigan · 3 Miles NE of Luther · Structure no. 000000000005290

Built
1996
29 years old
Condition
Good
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
190
2007 count
Owner
County
County Highway Agency

About this bridge

6 Mile RD over Pine River is a prestressed concrete box beam or girders - multiple carrying 6 Mile RD over Pine River in Lake County, Michigan. It was built in 1996, so it is 29 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 190 vehicles a day, projected to reach 340 by 2027. The structure is 100 ft (30.4 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Carries6 Mile RD
CrossesPine River
Location3 Miles NE of Luther
RouteCounty Highway 0
Coordinates44.074, -85.62445
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating65.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.4 m)
Longest span98 ft (29.8 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2007)
Projected traffic340 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 6 Mile RD over Pine River built?

It was built in 1996, making it 29 years old in 2025.

What condition is 6 Mile RD over Pine 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 May 2023.

How much traffic does 6 Mile RD over Pine River carry?

About 190 vehicles per day (2007 count).

How long is 6 Mile RD over Pine River?

The structure is 100 ft (30.4 m) long with a longest span of 98 ft (29.8 m) and a deck 31 ft wide.

Who owns 6 Mile RD over Pine River?

It is owned by the County Highway Agency.