US Bridges

M-25 over Burtch Creek

Fair

St. Clair County, Michigan · 0.4 MI S of Sanilac Col · Structure no. 000000000009959

Built
1948
77 years old, rebuilt 2000
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
131 ft
3 main spans
Daily traffic
8,420
2007 count
Owner
State
State Highway Agency

About this bridge

M-25 over Burtch Creek is a steel stringer/multi-beam or girder carrying M-25 over Burtch Creek in St. Clair County, Michigan. It was built in 1948 and reconstructed in 2000, so it is 77 years old, older 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 8,420 vehicles a day, roughly 6% of them trucks, projected to reach 23,500 by 2020. The structure is 131 ft (39.9 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesM-25
CrossesBurtch Creek
Location0.4 MI S of Sanilac Col
RouteState Highway 25
CountySt. Clair County
StateMichigan
Coordinates43.16316, -82.50399
Functional classUrban Other Principal 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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionMarch 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating80 US tons
Inventory rating47.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length131 ft (39.9 m)
Longest span44 ft (13.4 m)
Deck width43 ft (13.2 m)
Roadway width38 ft (11.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,420 (2007)
Projected traffic23,500 by 2020
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$242,000
NavigationNo navigation control on waterway

Frequently asked questions

When was M-25 over Burtch Creek built?

It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2000.

What condition is M-25 over Burtch Creek 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 March 2023.

How much traffic does M-25 over Burtch Creek carry?

About 8,420 vehicles per day (2007 count), of which roughly 6% are trucks.

How long is M-25 over Burtch Creek?

The structure is 131 ft (39.9 m) long with a longest span of 44 ft (13.4 m) and a deck 43 ft wide.

Who owns M-25 over Burtch Creek?

It is owned by the State Highway Agency.