US Bridges

Csah 27 over Willow Creek

Fair

Martin County, Minnesota · 0.8 MI N of JCT Csah 50 · Structure no. 46510

Built
1968
57 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
31 ft
1 main span
Daily traffic
1,456
2022 count
Owner
County
County Highway Agency

About this bridge

Csah 27 over Willow Creek is a prestressed concrete channel beam carrying Csah 27 over Willow Creek in Martin County, Minnesota. It was built in 1968, so it is 57 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 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 1,456 vehicles a day, projected to reach 1,500 by 2042. The structure is 31 ft (9.4 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 27
CrossesWillow Creek
Location0.8 MI N of JCT Csah 50
RouteCounty Highway 27
CountyMartin County
StateMinnesota
Coordinates43.8298, -94.61437
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection7 GoodSome minor problems.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating31.7 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span29 ft (8.7 m)
Deck width37 ft (11.3 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,456 (2022)
Projected traffic1,500 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 27 over Willow Creek built?

It was built in 1968, making it 57 years old in 2025.

What condition is Csah 27 over Willow 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 October 2024.

How much traffic does Csah 27 over Willow Creek carry?

About 1,456 vehicles per day (2022 count).

How long is Csah 27 over Willow Creek?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.7 m) and a deck 37 ft wide.

Who owns Csah 27 over Willow Creek?

It is owned by the County Highway Agency.