US Bridges

Marion Road over Carson Drain

Good

Saginaw County, Michigan · 0.4 MI E of Mckeighan RD · Structure no. 000000000009401

Built
2007
18 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
331
2008 count
Owner
County
County Highway Agency

About this bridge

Marion Road over Carson Drain is a concrete culvert carrying Marion Road over Carson Drain in Saginaw County, Michigan. It was built in 2007, so it is 18 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 331 vehicles a day, roughly 5% of them trucks, projected to reach 348 by 2018. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMarion Road
CrossesCarson Drain
Location0.4 MI E of Mckeighan RD
RouteCounty Highway 0
Coordinates43.24705, -84.12235
Functional classRural Local

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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95.7 US tons
Inventory rating57.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic331 (2008)
Projected traffic348 by 2018
Trucks5%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion Road over Carson Drain built?

It was built in 2007, making it 18 years old in 2025.

What condition is Marion Road over Carson Drain 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 2023.

How much traffic does Marion Road over Carson Drain carry?

About 331 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is Marion Road over Carson Drain?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m).

Who owns Marion Road over Carson Drain?

It is owned by the County Highway Agency.