US Bridges

Csah 15 over Robinson Creek

Fair

Mower County, Minnesota · 2.3 MI W of JCT Csah 8 · Structure no. 50J14

Built
1998
27 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
270
2016 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Robinson Creek is a concrete culvert carrying Csah 15 over Robinson Creek in Mower County, Minnesota. It was built in 1998, so it is 27 years old, younger 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.

It carries about 270 vehicles a day, projected to reach 270 by 2039. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCsah 15
CrossesRobinson Creek
Location2.3 MI W of JCT Csah 8
RouteCounty Highway 15
CountyMower County
StateMinnesota
Coordinates43.8048, -92.60621
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length31 ft (9.3 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic270 (2016)
Projected traffic270 by 2039
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 15 over Robinson Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Csah 15 over Robinson 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 August 2023.

How much traffic does Csah 15 over Robinson Creek carry?

About 270 vehicles per day (2016 count).

How long is Csah 15 over Robinson Creek?

The structure is 31 ft (9.3 m) long with a longest span of 11 ft (3.5 m).

Who owns Csah 15 over Robinson Creek?

It is owned by the County Highway Agency.