US Bridges

68th Street over Plaster Creek

Good

Kent County, Michigan · 0.6 MI W of Hanna Lake Av · Structure no. 000000000005014

Built
2011
14 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
13,367
2011 count
Owner
County
County Highway Agency

About this bridge

68th Street over Plaster Creek is a concrete culvert carrying 68th Street over Plaster Creek in Kent County, Michigan. It was built in 2011, so it is 14 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 13,367 vehicles a day, roughly 8% of them trucks, projected to reach 21,387 by 2031. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries68th Street
CrossesPlaster Creek
Location0.6 MI W of Hanna Lake Av
RouteCounty Highway 4116
Coordinates42.84109, -85.59683
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.8 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,367 (2011)
Projected traffic21,387 by 2031
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 68th Street over Plaster Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is 68th Street over Plaster 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 November 2023.

How much traffic does 68th Street over Plaster Creek carry?

About 13,367 vehicles per day (2011 count), of which roughly 8% are trucks.

How long is 68th Street over Plaster Creek?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m).

Who owns 68th Street over Plaster Creek?

It is owned by the County Highway Agency.