US Bridges

Burt Road over Cox-Doty Drain

Fair

St. Clair County, Michigan · Sec. 36 Mussey Twp. · Structure no. 000000000010065

Built
1987
38 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
50 ft
2 main spans
Daily traffic
555
1994 count
Owner
County
County Highway Agency

About this bridge

Burt Road over Cox-Doty Drain is a prestressed concrete tee beam carrying Burt Road over Cox-Doty Drain in St. Clair 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 5 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 555 vehicles a day, roughly 3% of them trucks, projected to reach 654 by 2014. The structure is 50 ft (15.2 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBurt Road
CrossesCox-Doty Drain
LocationSec. 36 Mussey Twp.
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates42.98397, -82.87487
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating105.1 US tons
Inventory rating61.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length50 ft (15.2 m)
Longest span25 ft (7.6 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic555 (1994)
Projected traffic654 by 2014
Trucks3%
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 Burt Road over Cox-Doty Drain built?

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

What condition is Burt Road over Cox-Doty Drain 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 October 2024.

How much traffic does Burt Road over Cox-Doty Drain carry?

About 555 vehicles per day (1994 count), of which roughly 3% are trucks.

How long is Burt Road over Cox-Doty Drain?

The structure is 50 ft (15.2 m) long with a longest span of 25 ft (7.6 m) and a deck 36 ft wide.

Who owns Burt Road over Cox-Doty Drain?

It is owned by the County Highway Agency.