US Bridges

Csah 10 over Redwood River

Fair

Redwood County, Minnesota · 0.4 MI S of JCT Csah 30 · Structure no. 89831

Built
1957
68 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
2 main spans
Daily traffic
355
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 10 over Redwood River is a steel stringer/multi-beam or girder carrying Csah 10 over Redwood River in Redwood County, Minnesota. It was built in 1957, so it is 68 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 5 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 355 vehicles a day, projected to reach 410 by 2039. The structure is 126 ft (38.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCsah 10
CrossesRedwood River
Location0.4 MI S of JCT Csah 30
RouteCounty Highway 10
CountyRedwood County
StateMinnesota
Coordinates44.50154, -95.41138
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.6 US tons
Inventory rating32 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length126 ft (38.4 m)
Longest span61 ft (18.7 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic355 (2019)
Projected traffic410 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$604 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 10 over Redwood River built?

It was built in 1957, making it 68 years old in 2025.

What condition is Csah 10 over Redwood 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 10 over Redwood River carry?

About 355 vehicles per day (2019 count).

How long is Csah 10 over Redwood River?

The structure is 126 ft (38.4 m) long with a longest span of 61 ft (18.7 m) and a deck 27 ft wide.

Who owns Csah 10 over Redwood River?

It is owned by the County Highway Agency.