US Bridges

Tyler Road over So Br Pentwater River

Fair

Oceana County, Michigan · 8.0 MI E of Hart · Structure no. 000000000008370

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
24 ft
1 main span
Daily traffic
1,500
2004 count
Owner
County
County Highway Agency

About this bridge

Tyler Road over So Br Pentwater River is a concrete culvert carrying Tyler Road over So Br Pentwater River in Oceana County, Michigan. It was built in 1987, so it is 38 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 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 1,500 vehicles a day, projected to reach 2,000 by 2024. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesTyler Road
CrossesSo Br Pentwater River
Location8.0 MI E of Hart
RouteCounty Highway 6454
CountyOceana County
StateMichigan
Coordinates43.70047, -86.20716
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2004)
Projected traffic2,000 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 Tyler Road over So Br Pentwater River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Tyler Road over So Br Pentwater 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 July 2024.

How much traffic does Tyler Road over So Br Pentwater River carry?

About 1,500 vehicles per day (2004 count).

How long is Tyler Road over So Br Pentwater River?

The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m).

Who owns Tyler Road over So Br Pentwater River?

It is owned by the County Highway Agency.