US Bridges

US-23|CENTER Ave over Rifle River

Fair

Arenac County, Michigan · In Omer · Structure no. 000000000000390

Built
1972
53 years old, rebuilt 2014
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
119 ft
2 main spans
Daily traffic
8,450
2014 count
Owner
State
State Highway Agency

About this bridge

US-23|CENTER Ave over Rifle River is a steel stringer/multi-beam or girder carrying US-23|CENTER Ave over Rifle River in Arenac County, Michigan. It was built in 1972 and reconstructed in 2014, so it is 53 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.

It carries about 8,450 vehicles a day, roughly 5% of them trucks, projected to reach 9,340 by 2034. The structure is 119 ft (36.3 m) long and 64 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS-23|CENTER Ave
CrossesRifle River
LocationIn Omer
RouteU.S. Route 23
Coordinates44.04768, -83.85595
Functional classRural Principal Arterial - Other

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to 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 alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length119 ft (36.3 m)
Longest span59 ft (17.9 m)
Deck width64 ft (19.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,450 (2014)
Projected traffic9,340 by 2034
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 US-23|CENTER Ave over Rifle River built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2014.

What condition is US-23|CENTER Ave over Rifle 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 November 2023.

How much traffic does US-23|CENTER Ave over Rifle River carry?

About 8,450 vehicles per day (2014 count), of which roughly 5% are trucks.

How long is US-23|CENTER Ave over Rifle River?

The structure is 119 ft (36.3 m) long with a longest span of 59 ft (17.9 m) and a deck 64 ft wide.

Who owns US-23|CENTER Ave over Rifle River?

It is owned by the State Highway Agency.