US Bridges

Csah 10 over Stream

FairPosted for load

Lyon County, Minnesota · 0.4 MI W of JCT Csah 3 · Structure no. 42505

Built
1963
62 years old
Condition
Fair
inspected September 2024
Type
Slab
Wood or Timber
Length
98 ft
4 main spans
Daily traffic
445
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 10 over Stream is a wood or timber slab carrying Csah 10 over Stream in Lyon County, Minnesota. It was built in 1963, so it is 62 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. Its operating status is: posted for load restriction.

It carries about 445 vehicles a day, projected to reach 375 by 2038. The structure is 98 ft (30 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 10
CrossesStream
Location0.4 MI W of JCT Csah 3
RouteCounty Highway 10
CountyLyon County
StateMinnesota
Coordinates44.55793, -95.99813
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; extensive scour has occurred
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating13.2 US tons
Inventory rating7.7 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadUnknown
Structure length98 ft (30 m)
Longest span24 ft (7.3 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic445 (2018)
Projected traffic375 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 10 over Stream built?

It was built in 1963, making it 62 years old in 2025.

What condition is Csah 10 over Stream 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 September 2024.

How much traffic does Csah 10 over Stream carry?

About 445 vehicles per day (2018 count).

How long is Csah 10 over Stream?

The structure is 98 ft (30 m) long with a longest span of 24 ft (7.3 m) and a deck 30 ft wide.

Who owns Csah 10 over Stream?

It is owned by the County Highway Agency.