US Bridges

North Union Road over Culver Creek

Good

Bay County, Michigan · 0.5 MI E of Fraser RD · Structure no. 000000000000737

Built
2005
20 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
35 ft
1 main span
Daily traffic
390
2004 count
Owner
County
County Highway Agency

About this bridge

North Union Road over Culver Creek is a concrete culvert carrying North Union Road over Culver Creek in Bay County, Michigan. It was built in 2005, so it is 20 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 390 vehicles a day, roughly 2% of them trucks, projected to reach 630 by 2024. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNorth Union Road
CrossesCulver Creek
Location0.5 MI E of Fraser RD
RouteCounty Highway 0
Coordinates43.61027, -84.00319
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMay 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length35 ft (10.7 m)
Longest span32 ft (9.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic390 (2004)
Projected traffic630 by 2024
Trucks2%
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 North Union Road over Culver Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is North Union Road over Culver 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 May 2024.

How much traffic does North Union Road over Culver Creek carry?

About 390 vehicles per day (2004 count), of which roughly 2% are trucks.

How long is North Union Road over Culver Creek?

The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m).

Who owns North Union Road over Culver Creek?

It is owned by the County Highway Agency.