US Bridges

Bordman Road over Shafer Drain Extension

Fair

St. Clair County, Michigan · Sec 34 Riley Twp · Structure no. 000000000010055

Built
1989
36 years old
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
37 ft
1 main span
Daily traffic
1,300
1994 count
Owner
County
County Highway Agency

About this bridge

Bordman Road over Shafer Drain Extension is a concrete culvert carrying Bordman Road over Shafer Drain Extension in St. Clair County, Michigan. It was built in 1989, so it is 36 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 1,300 vehicles a day, roughly 5% of them trucks, projected to reach 1,550 by 2014. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBordman Road
CrossesShafer Drain Extension
LocationSec 34 Riley Twp
RouteCounty Highway 7798
Coordinates42.89584, -82.79284
Functional classRural Minor Arterial

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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.2 US tons
Inventory rating32.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length37 ft (11.2 m)
Longest span34 ft (10.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (1994)
Projected traffic1,550 by 2014
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 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 Bordman Road over Shafer Drain Extension built?

It was built in 1989, making it 36 years old in 2025.

What condition is Bordman Road over Shafer Drain Extension 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 November 2024.

How much traffic does Bordman Road over Shafer Drain Extension carry?

About 1,300 vehicles per day (1994 count), of which roughly 5% are trucks.

How long is Bordman Road over Shafer Drain Extension?

The structure is 37 ft (11.2 m) long with a longest span of 34 ft (10.3 m).

Who owns Bordman Road over Shafer Drain Extension?

It is owned by the County Highway Agency.