DAVID THOMPSON BRG over KOOTENAI RIVER D/S DAM

LIBBY DAM MONTANA · County 053, Montana · Built 1967 · 2 Lanes · 100 vehicles/day

Overall

Fair

Deck

6

Satisfactory

Superstructure

7

Good

Substructure

7

Good

Condition Ratings

Component	Rating	Description
Deck	6	Satisfactory
Superstructure	7	Good
Substructure	7	Good

Location

48.406667, -115.316664

This bridge is in worse condition than 37.7% of bridges in County 053. The average bridge in Montana is 0 years old; this one is 59 years old.

Nearby Bridges

S 37 FH 57 over KOOTENAI RIVER

Fair Built 1969

RD 763 over FISHER RIV & RR OVERPASS

Fair Built 1968

S 37 FH 57 over CRIPPLE HORSE CREEK

Poor Built 1974

RD 4925 over CRIPPLE HORSE CR

Poor Built 1963

RD 228 over BRISTOW CR

Good Built 1969

Bridge Details

Structure #: CEPNWSMT1SGLI01
Year Built: 1967
Reconstructed: 1982
Length: 149 m (488.8 ft)
Max Span: 29.5 m
Width: 10.9 m (35.8 ft)
Lanes: 2
Daily Traffic: 100
Material: Steel Continuous
Design: Stringer/Multi-beam or Girder
Owner: Corps of Engineers (Civil)
Last Inspected: N/A
Est. Improvement: $1,405,000
Total Project Cost: $2,108,000

Data from FHWA National Bridge Inventory. Bridge conditions may have changed since the last inspection. This site is not affiliated with FHWA. Do not use for route clearance purposes.