US Bridges

Alpine Ave over Rogue River

Good

Kent County, Michigan · 0.40 MI NE of 12 Mile RD · Structure no. 000000000005048

Built
1963
62 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
2,946
2005 count
Owner
County
County Highway Agency

About this bridge

Alpine Ave over Rogue River is a prestressed concrete box beam or girders - multiple carrying Alpine Ave over Rogue River in Kent County, Michigan. It was built in 1963, so it is 62 years old, older 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 2,946 vehicles a day, projected to reach 5,010 by 2025. The structure is 90 ft (27.4 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesAlpine Ave
CrossesRogue River
Location0.40 MI NE of 12 Mile RD
RouteCounty Highway 4119
Coordinates43.15353, -85.68547
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.2 US tons
Inventory rating43.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length90 ft (27.4 m)
Longest span41 ft (12.5 m)
Deck width37 ft (11.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,946 (2005)
Projected traffic5,010 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 Alpine Ave over Rogue River built?

It was built in 1963, making it 62 years old in 2025.

What condition is Alpine Ave over Rogue 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 September 2024.

How much traffic does Alpine Ave over Rogue River carry?

About 2,946 vehicles per day (2005 count).

How long is Alpine Ave over Rogue River?

The structure is 90 ft (27.4 m) long with a longest span of 41 ft (12.5 m) and a deck 37 ft wide.

Who owns Alpine Ave over Rogue River?

It is owned by the County Highway Agency.