US Bridges

Csah 15 over CO Ditch # 30-A

Good

Nicollet County, Minnesota · 0.2 MI E of JCT Co. Rd. 4 · Structure no. 52J06

Built
1998
27 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
180
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over CO Ditch # 30-A is a concrete culvert carrying Csah 15 over CO Ditch # 30-A in Nicollet 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 180 vehicles a day, projected to reach 210 by 2039. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 15
CrossesCO Ditch # 30-A
Location0.2 MI E of JCT Co. Rd. 4
RouteCounty Highway 15
Coordinates44.39138, -94.24681
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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length26 ft (7.9 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic180 (2019)
Projected traffic210 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 CO Ditch # 30-A built?

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

What condition is Csah 15 over CO Ditch # 30-A 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 October 2022.

How much traffic does Csah 15 over CO Ditch # 30-A carry?

About 180 vehicles per day (2019 count).

How long is Csah 15 over CO Ditch # 30-A?

The structure is 26 ft (7.9 m) long with a longest span of 10 ft (3 m).

Who owns Csah 15 over CO Ditch # 30-A?

It is owned by the County Highway Agency.