US Bridges

Csah 9 over Cobb Creek

Good

Lac qui Parle County, Minnesota · 1.3 MI S of JCT Csah 12 · Structure no. 37J72

Built
2012
13 years old
Condition
Good
inspected August 2022
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
100
2012 count
Owner
County
County Highway Agency

About this bridge

Csah 9 over Cobb Creek is a concrete culvert carrying Csah 9 over Cobb Creek in Lac qui Parle County, Minnesota. It was built in 2012, so it is 13 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 89 by 2032. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 9
CrossesCobb Creek
Location1.3 MI S of JCT Csah 12
RouteCounty Highway 9
Coordinates44.87321, -96.35869
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert9 ExcellentNo problems noted.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2012)
Projected traffic89 by 2032
Trucks—
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 Csah 9 over Cobb Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Csah 9 over Cobb Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2022.

How much traffic does Csah 9 over Cobb Creek carry?

About 100 vehicles per day (2012 count).

How long is Csah 9 over Cobb Creek?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 9 over Cobb Creek?

It is owned by the County Highway Agency.