US Bridges

Csah 23 over S Br S Fk Root River

PoorPosted for load

Fillmore County, Minnesota · 1.0 MI N of JCT Csah 18 · Structure no. 23505

Built
1963
62 years old
Condition
Poor
inspected April 2024
Type
Channel Beam
Prestressed Concrete
Length
76 ft
3 main spans
Daily traffic
305
2013 count
Owner
County
County Highway Agency

About this bridge

Csah 23 over S Br S Fk Root River is a prestressed concrete channel beam carrying Csah 23 over S Br S Fk Root River in Fillmore County, Minnesota. It was built in 1963, so it is 62 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 305 vehicles a day, projected to reach 305 by 2039. The structure is 76 ft (23.1 m) long and 32 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesCsah 23
CrossesS Br S Fk Root River
Location1.0 MI N of JCT Csah 18
RouteCounty Highway 23
Coordinates43.60855, -91.89463
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length76 ft (23.1 m)
Longest span25 ft (7.6 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic305 (2013)
Projected traffic305 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 23 over S Br S Fk Root River built?

It was built in 1963, making it 62 years old in 2025.

What condition is Csah 23 over S Br S Fk Root River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Csah 23 over S Br S Fk Root River carry?

About 305 vehicles per day (2013 count).

How long is Csah 23 over S Br S Fk Root River?

The structure is 76 ft (23.1 m) long with a longest span of 25 ft (7.6 m) and a deck 32 ft wide.

Who owns Csah 23 over S Br S Fk Root River?

It is owned by the County Highway Agency.