US Bridges

Csah 18 over Stream

Fair

Nobles County, Minnesota · 0.1 MI E of JCT Csah 9 · Structure no. L3367

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
22 ft
4 main spans
Daily traffic
130
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over Stream is a concrete culvert carrying Csah 18 over Stream in Nobles County, Minnesota. It was built in 1950, so it is 75 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 6 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 130 vehicles a day, projected to reach 120 by 2039. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCsah 18
CrossesStream
Location0.1 MI E of JCT Csah 9
RouteCounty Highway 18
CountyNobles County
StateMinnesota
Coordinates43.80518, -95.70643
Functional classRural Major 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
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.5 US tons
Inventory rating30.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span5 ft (1.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2019)
Projected traffic120 by 2039
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$90 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 18 over Stream built?

It was built in 1950, making it 75 years old in 2025.

What condition is Csah 18 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 October 2024.

How much traffic does Csah 18 over Stream carry?

About 130 vehicles per day (2019 count).

How long is Csah 18 over Stream?

The structure is 22 ft (6.7 m) long with a longest span of 5 ft (1.6 m).

Who owns Csah 18 over Stream?

It is owned by the County Highway Agency.