US Bridges

Csah 8 over S Br Yellow Medicine R

GoodPosted for load

Lyon County, Minnesota · 0.1 MI E of JCT Csah 3 · Structure no. 42516

Built
1970
55 years old
Condition
Good
inspected October 2024
Type
Slab
Wood or Timber
Length
78 ft
3 main spans
Daily traffic
295
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 8 over S Br Yellow Medicine R is a wood or timber slab carrying Csah 8 over S Br Yellow Medicine R in Lyon County, Minnesota. It was built in 1970, so it is 55 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 7 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 295 vehicles a day, projected to reach 310 by 2038. The structure is 78 ft (23.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 8
CrossesS Br Yellow Medicine R
Location0.1 MI E of JCT Csah 3
RouteCounty Highway 8
Coordinates44.51661, -95.9965
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.1 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span26 ft (7.9 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic295 (2018)
Projected traffic310 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Br Yellow Medicine R built?

It was built in 1970, making it 55 years old in 2025.

What condition is Csah 8 over S Br Yellow Medicine R 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 2024.

How much traffic does Csah 8 over S Br Yellow Medicine R carry?

About 295 vehicles per day (2018 count).

How long is Csah 8 over S Br Yellow Medicine R?

The structure is 78 ft (23.8 m) long with a longest span of 26 ft (7.9 m) and a deck 31 ft wide.

Who owns Csah 8 over S Br Yellow Medicine R?

It is owned by the County Highway Agency.