OLD HWY 312 over YELLOWSTONE RIVER 170

HUNTLEY · County 111, Montana · Built 1949 · 2 Lanes · 4,005 vehicles/day

Structurally Deficient — One or more key components rated 4 (Poor) or below
Overall
Poor
Deck
4
Poor
Superstructure
6
Satisfactory
Substructure
5
Fair

Condition Ratings

ComponentRatingDescription
Deck 4 Poor
Superstructure 6 Satisfactory
Substructure 5 Fair

Location

45.903906, -108.318964

This bridge is in worse condition than 97.6% of bridges in County 111. The average bridge in Montana is 0 years old; this one is 77 years old.

Nearby Bridges

S 522 (36-30) over HUNTLEY CANAL
Fair Built 1967
N CANAL DR over HUNTLEY MAIN CANAL 104
Good Built 1975
S 522 (36-31) over PRYOR CREEK
Good Built 2011
VERMILION RD over TWELVE MILE CREEK 091
Good Built 2005
I 94 over PRYOR CREEK
Fair Built 1967
I 94 over PRYOR CREEK
Fair Built 1967
I 94 over INT HUNTLEY-S 522
Fair Built 1967
I 94 over INT HUNTLEY-S 522
Fair Built 1967
S 4TH RD over HUNTLEY MAIN CANAL 146
Good Built 1986
SQUAW CREEK RD over PRYOR CREEK 004
Fair Built 1978

Bridge Details

Structure #
L56788012+07001
Year Built
1949
Length
311.5 m (1022 ft)
Max Span
56.4 m
Width
10.3 m (33.8 ft)
Lanes
2
Daily Traffic
4,005
Material
Steel Continuous
Design
Girder and Floorbeam System
Owner
State Highway Agency
Last Inspected
N/A
Est. Improvement
N/A
Total Project Cost
N/A
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.