US Bridges

Csah 15 over CO Ditch # 78

Good

Nicollet County, Minnesota · 1.8 MI NW of JCT 377th Av · Structure no. 52518

Built
1998
27 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
315
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over CO Ditch # 78 is a prestressed concrete stringer/multi-beam or girder carrying Csah 15 over CO Ditch # 78 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 315 vehicles a day, projected to reach 260 by 2039. The structure is 87 ft (26.5 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 15
CrossesCO Ditch # 78
Location1.8 MI NW of JCT 377th Av
RouteCounty Highway 15
Coordinates44.35923, -94.05486
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length87 ft (26.5 m)
Longest span85 ft (26 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic315 (2019)
Projected traffic260 by 2039
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 15 over CO Ditch # 78 built?

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

What condition is Csah 15 over CO Ditch # 78 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 November 2024.

How much traffic does Csah 15 over CO Ditch # 78 carry?

About 315 vehicles per day (2019 count).

How long is Csah 15 over CO Ditch # 78?

The structure is 87 ft (26.5 m) long with a longest span of 85 ft (26 m) and a deck 43 ft wide.

Who owns Csah 15 over CO Ditch # 78?

It is owned by the County Highway Agency.