US Bridges

Klindworth RD over Woody Island Coulee 136

Fair

Blaine County, Montana · 5M N Hogeland · Structure no. L03021002+01001

Built
2001
24 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Klindworth RD over Woody Island Coulee 136 is a steel stringer/multi-beam or girder carrying Klindworth RD over Woody Island Coulee 136 in Blaine County, Montana. It was built in 2001, so it is 24 years old, younger than the Montana average of 47 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 28 ft (8.6 m) long and 20 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesKlindworth RD
CrossesWoody Island Coulee 136
Location5M N Hogeland
RouteCounty Highway 3108
StateMontana
Coordinates48.91553, -108.67302
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.3 US tons
Inventory rating26.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length28 ft (8.6 m)
Longest span28 ft (8.4 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 Klindworth RD over Woody Island Coulee 136 built?

It was built in 2001, making it 24 years old in 2025.

What condition is Klindworth RD over Woody Island Coulee 136 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 March 2023.

How much traffic does Klindworth RD over Woody Island Coulee 136 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Klindworth RD over Woody Island Coulee 136?

The structure is 28 ft (8.6 m) long with a longest span of 28 ft (8.4 m) and a deck 20 ft wide.

Who owns Klindworth RD over Woody Island Coulee 136?

It is owned by the County Highway Agency.