US Bridges

Pumphouse RD over Irrigation Ditch 006

FairPosted for load

Treasure County, Montana · 1M NW Hysham · Structure no. L52011002+08001

Built
1955
70 years old, rebuilt 2013
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
194
2023 count
Owner
County
County Highway Agency

About this bridge

Pumphouse RD over Irrigation Ditch 006 is a steel stringer/multi-beam or girder carrying Pumphouse RD over Irrigation Ditch 006 in Treasure County, Montana. It was built in 1955 and reconstructed in 2013, so it is 70 years old, older 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 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 194 vehicles a day, roughly 3% of them trucks, projected to reach 205 by 2043. The structure is 32 ft (9.8 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesPumphouse RD
CrossesIrrigation Ditch 006
Location1M NW Hysham
RouteCounty Highway 52026
CountyTreasure County
StateMontana
Coordinates46.30524, -107.23691
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
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 protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating12 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic194 (2023)
Projected traffic205 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Pumphouse RD over Irrigation Ditch 006 built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2013.

What condition is Pumphouse RD over Irrigation Ditch 006 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 2023.

How much traffic does Pumphouse RD over Irrigation Ditch 006 carry?

About 194 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Pumphouse RD over Irrigation Ditch 006?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 17 ft wide.

Who owns Pumphouse RD over Irrigation Ditch 006?

It is owned by the County Highway Agency.