US Bridges

Frost Road over Whitmore Drain

Good

Saginaw County, Michigan · 0.6 MI E of Brennan Road · Structure no. 000000000009225

Built
1995
30 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
28 ft
1 main span
Daily traffic
1,254
2008 count
Owner
County
County Highway Agency

About this bridge

Frost Road over Whitmore Drain is a concrete culvert carrying Frost Road over Whitmore Drain in Saginaw County, Michigan. It was built in 1995, so it is 30 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 1,254 vehicles a day, roughly 5% of them trucks, projected to reach 1,317 by 2018. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFrost Road
CrossesWhitmore Drain
Location0.6 MI E of Brennan Road
RouteCounty Highway 0
Coordinates43.45041, -84.2362
Functional classRural Major 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 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 rating71.1 US tons
Inventory rating42.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span28 ft (8.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,254 (2008)
Projected traffic1,317 by 2018
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Frost Road over Whitmore Drain built?

It was built in 1995, making it 30 years old in 2025.

What condition is Frost Road over Whitmore 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 August 2023.

How much traffic does Frost Road over Whitmore Drain carry?

About 1,254 vehicles per day (2008 count), of which roughly 5% are trucks.

How long is Frost Road over Whitmore Drain?

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

Who owns Frost Road over Whitmore Drain?

It is owned by the County Highway Agency.