US Bridges

Csah 24 over Minnesota River

Fair

Nicollet County, Minnesota · 0.5 MI NE of JCT TH 68 · Structure no. 52504

Built
1973
52 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
567 ft
5 main spans
Daily traffic
1,048
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 24 over Minnesota River is a steel continuous stringer/multi-beam or girder carrying Csah 24 over Minnesota River in Nicollet County, Minnesota. It was built in 1973, so it is 52 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 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 1,048 vehicles a day, projected to reach 960 by 2041. The structure is 567 ft (172.7 m) long and 36 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesCsah 24
CrossesMinnesota River
Location0.5 MI NE of JCT TH 68
RouteCounty Highway 24
CountyNicollet County
StateMinnesota
Coordinates44.25753, -94.34178
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating44.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length567 ft (172.7 m)
Longest span123 ft (37.5 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,048 (2021)
Projected traffic960 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 24 over Minnesota River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Csah 24 over Minnesota River 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 November 2023.

How much traffic does Csah 24 over Minnesota River carry?

About 1,048 vehicles per day (2021 count).

How long is Csah 24 over Minnesota River?

The structure is 567 ft (172.7 m) long with a longest span of 123 ft (37.5 m) and a deck 36 ft wide.

Who owns Csah 24 over Minnesota River?

It is owned by the County Highway Agency.