US Bridges

Csah 24 over Elk River

Good

Sherburne County, Minnesota · 0.9 MI E of JCT Csah 23 · Structure no. 71529

Built
2015
10 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
134 ft
2 main spans
Daily traffic
1,850
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 24 over Elk River is a prestressed concrete stringer/multi-beam or girder carrying Csah 24 over Elk River in Sherburne County, Minnesota. It was built in 2015, so it is 10 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 1,850 vehicles a day, projected to reach 1,850 by 2038. The structure is 134 ft (40.8 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCsah 24
CrossesElk River
Location0.9 MI E of JCT Csah 23
RouteCounty Highway 24
Coordinates45.39402, -93.85294
Functional classRural Major 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.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length134 ft (40.8 m)
Longest span66 ft (20.1 m)
Deck width56 ft (17.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,850 (2018)
Projected traffic1,850 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 Elk River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Csah 24 over Elk River 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 2023.

How much traffic does Csah 24 over Elk River carry?

About 1,850 vehicles per day (2018 count).

How long is Csah 24 over Elk River?

The structure is 134 ft (40.8 m) long with a longest span of 66 ft (20.1 m) and a deck 56 ft wide.

Who owns Csah 24 over Elk River?

It is owned by the County Highway Agency.