US Bridges

Csah 18 over Jack Creek

Fair

Nobles County, Minnesota · 0.3 MI W of JCT TH 59 · Structure no. 53512

Built
1966
59 years old
Condition
Fair
inspected October 2024
Type
Slab
Wood or Timber
Length
58 ft
3 main spans
Daily traffic
165
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 18 over Jack Creek is a wood or timber slab carrying Csah 18 over Jack Creek in Nobles 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 165 vehicles a day, projected to reach 195 by 2039. The structure is 58 ft (17.8 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 18
CrossesJack Creek
Location0.3 MI W of JCT TH 59
RouteCounty Highway 18
Coordinates43.81965, -95.59927
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
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 inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating51.5 US tons
Inventory rating37.1 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 20
Structure length58 ft (17.8 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2019)
Projected traffic195 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 18 over Jack Creek built?

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

What condition is Csah 18 over Jack Creek 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 Jack Creek carry?

About 165 vehicles per day (2019 count).

How long is Csah 18 over Jack Creek?

The structure is 58 ft (17.8 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns Csah 18 over Jack Creek?

It is owned by the County Highway Agency.