US Bridges

E Lake RD over Pondera Coulee 029

FairPosted for load

Pondera County, Montana · 15M W Conrad · Structure no. L37304003+00001

Built
1960
65 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
1 main span
Daily traffic
77
2023 count
Owner
County
County Highway Agency

About this bridge

E Lake RD over Pondera Coulee 029 is a wood or timber stringer/multi-beam or girder carrying E Lake RD over Pondera Coulee 029 in Pondera County, Montana. It was built in 1960, so it is 65 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 6 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 77 vehicles a day, roughly 3% of them trucks, projected to reach 81 by 2043. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesE Lake RD
CrossesPondera Coulee 029
Location15M W Conrad
RouteCounty Highway 37304
StateMontana
Coordinates48.1443, -112.26426
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating16 US tons
Inventory rating10 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic77 (2023)
Projected traffic81 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 E Lake RD over Pondera Coulee 029 built?

It was built in 1960, making it 65 years old in 2025.

What condition is E Lake RD over Pondera Coulee 029 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 E Lake RD over Pondera Coulee 029 carry?

About 77 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is E Lake RD over Pondera Coulee 029?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.

Who owns E Lake RD over Pondera Coulee 029?

It is owned by the County Highway Agency.