US Bridges

Thornapple Riv Drv over Unnamed Creek

Fair

Kent County, Michigan · 0.50 MI N of 84th ST · Structure no. 000000000005128

Built
1980
45 years old
Condition
Fair
inspected November 2023
Type
Culvert
Steel
Length
28 ft
2 main spans
Daily traffic
713
2004 count
Owner
County
County Highway Agency

About this bridge

Thornapple Riv Drv over Unnamed Creek is a steel culvert carrying Thornapple Riv Drv over Unnamed Creek in Kent County, Michigan. It was built in 1980, so it is 45 years old, younger 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 5 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 713 vehicles a day, projected to reach 1,210 by 2024. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesThornapple Riv Drv
CrossesUnnamed Creek
Location0.50 MI N of 84th ST
RouteCounty Highway 0
CountyKent County
StateMichigan
Coordinates42.81918, -85.48809
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length28 ft (8.5 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic713 (2004)
Projected traffic1,210 by 2024
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 Thornapple Riv Drv over Unnamed Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Thornapple Riv Drv over Unnamed Creek 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 Thornapple Riv Drv over Unnamed Creek carry?

About 713 vehicles per day (2004 count).

How long is Thornapple Riv Drv over Unnamed Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.6 m).

Who owns Thornapple Riv Drv over Unnamed Creek?

It is owned by the County Highway Agency.