US Bridges

Csah 25 over Root River

Good

Houston County, Minnesota · 0.3 MI S of JCT Csah 21 · Structure no. 28528

Built
2001
24 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
475 ft
4 main spans
Daily traffic
286
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 25 over Root River is a prestressed concrete stringer/multi-beam or girder carrying Csah 25 over Root River in Houston County, Minnesota. It was built in 2001, so it is 24 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 286 vehicles a day, projected to reach 205 by 2041. The structure is 475 ft (144.9 m) long and 39 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCsah 25
CrossesRoot River
Location0.3 MI S of JCT Csah 21
RouteCounty Highway 25
Coordinates43.78155, -91.44569
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 25 or greater
Structure length475 ft (144.9 m)
Longest span118 ft (35.9 m)
Deck width39 ft (11.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic286 (2021)
Projected traffic205 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 25 over Root River built?

It was built in 2001, making it 24 years old in 2025.

What condition is Csah 25 over Root 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 June 2024.

How much traffic does Csah 25 over Root River carry?

About 286 vehicles per day (2021 count).

How long is Csah 25 over Root River?

The structure is 475 ft (144.9 m) long with a longest span of 118 ft (35.9 m) and a deck 39 ft wide.

Who owns Csah 25 over Root River?

It is owned by the County Highway Agency.