US Bridges

Csah 18 over Wood Lake Creek (jd #10)

Fair

Yellow Medicine County, Minnesota · 1.2 MI W of JCT TH 67 · Structure no. 87504

Built
1966
59 years old
Condition
Fair
inspected November 2024
Type
Channel Beam
Prestressed Concrete
Length
69 ft
3 main spans
Daily traffic
573
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over Wood Lake Creek (jd #10) is a prestressed concrete channel beam carrying Csah 18 over Wood Lake Creek (jd #10) in Yellow Medicine County, Minnesota. It was built in 1966, so it is 59 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 573 vehicles a day, projected to reach 365 by 2041. The structure is 69 ft (21.1 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCsah 18
CrossesWood Lake Creek (jd #10)
Location1.2 MI W of JCT TH 67
RouteCounty Highway 18
CountyYellow Medicine County
StateMinnesota
Coordinates44.70168, -95.44546
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating56.7 US tons
Inventory rating34 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length69 ft (21.1 m)
Longest span18 ft (5.4 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic573 (2021)
Projected traffic365 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 18 over Wood Lake Creek (jd #10) built?

It was built in 1966, making it 59 years old in 2025.

What condition is Csah 18 over Wood Lake Creek (jd #10) 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 November 2024.

How much traffic does Csah 18 over Wood Lake Creek (jd #10) carry?

About 573 vehicles per day (2021 count).

How long is Csah 18 over Wood Lake Creek (jd #10)?

The structure is 69 ft (21.1 m) long with a longest span of 18 ft (5.4 m) and a deck 31 ft wide.

Who owns Csah 18 over Wood Lake Creek (jd #10)?

It is owned by the County Highway Agency.