US Bridges

12 Mile RD over Rogue River

FairPosted for load

Kent County, Michigan · 100 Ft E of Friske Drive · Structure no. 000000000005100

Built
1970
55 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
112 ft
2 main spans
Daily traffic
1,116
2005 count
Owner
County
County Highway Agency

About this bridge

12 Mile RD over Rogue River is a prestressed concrete box beam or girders - multiple carrying 12 Mile RD over Rogue River in Kent County, Michigan. It was built in 1970, so it is 55 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. Its operating status is: posted for load restriction.

It carries about 1,116 vehicles a day, projected to reach 1,900 by 2025. The structure is 112 ft (34.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries12 Mile RD
CrossesRogue River
Location100 Ft E of Friske Drive
RouteCounty Highway 0
CountyKent County
StateMichigan
Coordinates43.1462, -85.60096
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating41.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20 + Mod
Structure length112 ft (34.1 m)
Longest span56 ft (17 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,116 (2005)
Projected traffic1,900 by 2025
Trucks0%
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 12 Mile RD over Rogue River built?

It was built in 1970, making it 55 years old in 2025.

What condition is 12 Mile RD over Rogue 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 12 Mile RD over Rogue River carry?

About 1,116 vehicles per day (2005 count).

How long is 12 Mile RD over Rogue River?

The structure is 112 ft (34.1 m) long with a longest span of 56 ft (17 m) and a deck 33 ft wide.

Who owns 12 Mile RD over Rogue River?

It is owned by the County Highway Agency.