US Bridges

18th Ave over Rush Creek

Good

Ottawa County, Michigan · Section 22 Georgetown Twp · Structure no. 000000000012659

Built
1996
29 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
113 ft
2 main spans
Daily traffic
7,948
2019 count
Owner
County
County Highway Agency

About this bridge

18th Ave over Rush Creek is a prestressed concrete box beam or girders - multiple carrying 18th Ave over Rush Creek in Ottawa 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 7,948 vehicles a day, roughly 5% of them trucks, projected to reach 14,350 by 2039. The structure is 113 ft (34.5 m) long and 43 ft wide.

Carries18th Ave
CrossesRush Creek
LocationSection 22 Georgetown Twp
RouteCounty Highway 0
Coordinates42.88821, -85.82561
Functional classUrban Local

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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than 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 rating90.4 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length113 ft (34.5 m)
Longest span68 ft (20.8 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,948 (2019)
Projected traffic14,350 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 18th Ave over Rush Creek built?

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

What condition is 18th Ave over Rush Creek 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 18th Ave over Rush Creek carry?

About 7,948 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is 18th Ave over Rush Creek?

The structure is 113 ft (34.5 m) long with a longest span of 68 ft (20.8 m) and a deck 43 ft wide.

Who owns 18th Ave over Rush Creek?

It is owned by the County Highway Agency.