US Bridges

Csah 1 over N Br Yellow Medicine R

Good

Lyon County, Minnesota · 0.8 MI N of JCT Csah 26 · Structure no. 42549

Built
1993
32 years old
Condition
Good
inspected October 2024
Type
Tee Beam
Prestressed Concrete
Length
124 ft
3 main spans
Daily traffic
380
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 1 over N Br Yellow Medicine R is a prestressed concrete tee beam carrying Csah 1 over N Br Yellow Medicine R in Lyon County, Minnesota. It was built in 1993, so it is 32 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 380 vehicles a day, roughly 9% of them trucks, projected to reach 325 by 2038. The structure is 124 ft (37.8 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 1
CrossesN Br Yellow Medicine R
Location0.8 MI N of JCT Csah 26
RouteCounty Highway 1
Coordinates44.613, -96.05288
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
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.6 US tons
Inventory rating54.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length124 ft (37.8 m)
Longest span41 ft (12.6 m)
Deck width40 ft (12.2 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic380 (2018)
Projected traffic325 by 2038
Trucks9%
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 1 over N Br Yellow Medicine R built?

It was built in 1993, making it 32 years old in 2025.

What condition is Csah 1 over N 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 1 over N Br Yellow Medicine R carry?

About 380 vehicles per day (2018 count), of which roughly 9% are trucks.

How long is Csah 1 over N Br Yellow Medicine R?

The structure is 124 ft (37.8 m) long with a longest span of 41 ft (12.6 m) and a deck 40 ft wide.

Who owns Csah 1 over N Br Yellow Medicine R?

It is owned by the County Highway Agency.