US Bridges

Csah 12 over Buffalo Creek

FairPosted for load

Wright County, Minnesota · 3.4 MI S of JCT TH 25 · Structure no. 86511

Built
1985
40 years old
Condition
Fair
inspected September 2023
Type
Slab
Wood or Timber
Length
96 ft
3 main spans
Daily traffic
4,231
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over Buffalo Creek is a wood or timber slab carrying Csah 12 over Buffalo Creek in Wright County, Minnesota. It was built in 1985, so it is 40 years old, older than the Minnesota average of 38.5 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. Its operating status is: posted for load restriction.

It carries about 4,231 vehicles a day, projected to reach 3,100 by 2042. The structure is 96 ft (29.3 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesCsah 12
CrossesBuffalo Creek
Location3.4 MI S of JCT TH 25
RouteCounty Highway 12
CountyWright County
StateMinnesota
Coordinates45.12701, -93.90032
Functional classRural Major 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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.9 US tons
Inventory rating27.4 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span32 ft (9.8 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,231 (2022)
Projected traffic3,100 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Csah 12 over Buffalo Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is Csah 12 over Buffalo 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 September 2023.

How much traffic does Csah 12 over Buffalo Creek carry?

About 4,231 vehicles per day (2022 count).

How long is Csah 12 over Buffalo Creek?

The structure is 96 ft (29.3 m) long with a longest span of 32 ft (9.8 m) and a deck 46 ft wide.

Who owns Csah 12 over Buffalo Creek?

It is owned by the County Highway Agency.