US Bridges

Csah 8 over Yellow Medicine River

GoodPosted for load

Yellow Medicine County, Minnesota · 0.6 MI N of JCT Csah 2 · Structure no. 87531

Built
1977
48 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
169 ft
3 main spans
Daily traffic
34
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over Yellow Medicine River is a prestressed concrete stringer/multi-beam or girder carrying Csah 8 over Yellow Medicine River in Yellow Medicine County, Minnesota. It was built in 1977, so it is 48 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 34 vehicles a day, projected to reach 50 by 2041. The structure is 169 ft (51.6 m) long and 36 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 8
CrossesYellow Medicine River
Location0.6 MI N of JCT Csah 2
RouteCounty Highway 8
Coordinates44.65345, -95.76789
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.7 US tons
Inventory rating23.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length169 ft (51.6 m)
Longest span56 ft (17.2 m)
Deck width36 ft (10.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34 (2021)
Projected traffic50 by 2041
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 8 over Yellow Medicine River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Csah 8 over Yellow Medicine 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 8 over Yellow Medicine River carry?

About 34 vehicles per day (2021 count).

How long is Csah 8 over Yellow Medicine River?

The structure is 169 ft (51.6 m) long with a longest span of 56 ft (17.2 m) and a deck 36 ft wide.

Who owns Csah 8 over Yellow Medicine River?

It is owned by the County Highway Agency.