US Bridges

Csah 8 over S Fk Zumbro River

Good

Olmsted County, Minnesota · 0.1 MI S of JCT Csah 22 · Structure no. 55567

Built
2002
23 years old
Condition
Good
inspected November 2023
Type
Slab
Prestressed Concrete
Length
212 ft
2 main spans
Daily traffic
7,700
2014 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over S Fk Zumbro River is a prestressed concrete slab carrying Csah 8 over S Fk Zumbro River in Olmsted County, Minnesota. It was built in 2002, so it is 23 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 7,700 vehicles a day, projected to reach 7,893 by 2034. The structure is 212 ft (64.5 m) long and 82 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 8
CrossesS Fk Zumbro River
Location0.1 MI S of JCT Csah 22
RouteCounty Highway 8
Coordinates43.99754, -92.49806
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.9 US tons
Inventory rating31.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length212 ft (64.5 m)
Longest span116 ft (35.3 m)
Deck width82 ft (25.1 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2014)
Projected traffic7,893 by 2034
Trucks—
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 8 over S Fk Zumbro River built?

It was built in 2002, making it 23 years old in 2025.

What condition is Csah 8 over S Fk Zumbro 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 November 2023.

How much traffic does Csah 8 over S Fk Zumbro River carry?

About 7,700 vehicles per day (2014 count).

How long is Csah 8 over S Fk Zumbro River?

The structure is 212 ft (64.5 m) long with a longest span of 116 ft (35.3 m) and a deck 82 ft wide.

Who owns Csah 8 over S Fk Zumbro River?

It is owned by the County Highway Agency.