Twin Falls County, ID

35 public highway bridges

Twin Falls County Bridge Snapshot

Twin Falls County, Idaho contains 35 public highway bridges in the FHWA National Bridge Inventory. Roughly 14.3% are rated “Good,” 80% “Fair,” 2.9% “Poor,” and 2.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in ID are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

35
Total Bridges
14.3%
Good
2.9%
Poor
2.9%
Structurally Deficient

Condition Distribution

Good
14.3% (5)
Fair
80% (28)
Poor
2.9% (1)
SD
2.9% (1)

All Bridges (35)

US 93; ON RAMP

Unknown

Over: US 93

4.7 W. TWIN FALLS WCL, Twin Falls, ID

Built 2011 ADT: 5,400

SHOESTRING ROAD

Fair

Over: SNAKE RIVER;SW BLISS BR

0.6 S. 0.8 W. BLISS, Twin Falls, ID

Built 1977 Load: 16.3 t ADT: 180

CLOVER ROAD

Fair

Over: CEDAR DRAW

0.5 W. FILER;JORDEN COR, Twin Falls, ID

Built 1940 Load: 16.3 t ADT: 1,100

3100 EAST ROAD

Fair

Over: LOW LINE CANAL

4.2 S. 1.5 E. TWIN FALLS, Twin Falls, ID

Built 1965 Load: 20.9 t ADT: 140

1500 EAST ROAD

Fair

Over: LOW LINE CANAL

2.5 S. 0.5 E. BUHL, Twin Falls, ID

Built 1936 Load: 20.9 t ADT: 80

2100 EAST RD

Fair

Over: LOW LINE CANAL

1.1S 1.0W FILER;JRDN COR, Twin Falls, ID

Built 1968 Load: 20.9 t ADT: 150

1500 EAST ROAD

Fair

Over: HIGH LINE CANAL

7.2 S. 0.5 E. BUHL, Twin Falls, ID

Built 1930 Load: 20.9 t ADT: 20

2800 EAST RD

Fair

Over: HIGH LINE CANAL

4.8 S. 1.5 W. TWIN FALLS, Twin Falls, ID

Built 1972 Load: 20.9 t ADT: 90

2500 EAST ROAD

Fair

Over: LOW LINE CANAL

2.5 S. 2.7 E. FILER, Twin Falls, ID

Built 1930 Load: 20.9 t ADT: 140

N 1700 E

Fair

Over: LATERAL 17A

2.4 E. 3.3 S. BUHL, Twin Falls, ID

Built 1969 Load: 20.9 t ADT: 400

3200 EAST RD

Fair

Over: HIGH LINE CANAL

6.4 S. 2.5 E. TWIN FALLS, Twin Falls, ID

Built 1969 Load: 20.9 t ADT: 140

2500 EAST ROAD

Fair

Over: HIGH LINE CANAL

4.3 S. 2.7 E. FILER, Twin Falls, ID

Built 1964 Load: 20.9 t ADT: 140

RIVER ROAD

Fair

Over: MUD CREEK

4.2 N. 5.6 W. BUHL, Twin Falls, ID

Built 1983 Load: 20.9 t ADT: 60

2100 EAST RD

Fair

Over: HIGH LINE CANAL

3.1S 1.0W FILER;JRDN COR, Twin Falls, ID

Built 1962 Load: 21.6 t ADT: 100

N 3700 E ROAD

Fair

Over: LOW LINE CANAL

3.1 S. 1.0 W. HANSEN, Twin Falls, ID

Built 1978 Load: 23.6 t ADT: 70

1900 EAST ROAD

Fair

Over: SALMON RIVER CANAL

4.7 S. 5.0 W. HOLLISTER, Twin Falls, ID

Built 1980 Load: 23.6 t ADT: 30

3425 NORTH ROAD

Fair

Over: DRY CREEK

0.9 E. MURTAUGH, Twin Falls, ID

Built 1965 Load: 28.1 t ADT: 100

2500 NORTH ROAD

Fair

Over: SALMON LATERAL NO.1

0.5 N. 2.0 E. HOLLISTER, Twin Falls, ID

Built 1978 Load: 28.1 t ADT: 40

4000 NORTH RD

Fair

Over: LOW LINE CANAL

1.4 S. 5.4 W. BUHL, Twin Falls, ID

Built 1966 Load: 28.1 t ADT: 100

N 900 E

Fair

Over: LOW LINE CANAL

5.5 W. BUHL, Twin Falls, ID

Built 1990 Load: 28.1 t ADT: 100

1700 EAST RD

Fair

Over: HIGH LINE CANAL

5.7 S. 2.4 E. BUHL, Twin Falls, ID

Built 1981 Load: 29.0 t ADT: 400

N. 3300 EAST RD.

Fair

Over: PERRINE COULEE

3.5 S. 3.3 E. TWIN FALLS, Twin Falls, ID

Built 1979 Load: 32.7 t ADT: 760

4300 EAST ROAD

Fair

Over: TWIN FALLS MAIN CANAL

2.9 N. 2.4 W. MURTAUGH, Twin Falls, ID

Built 1997 Load: 33.6 t ADT: 30

RIVER ROAD

Fair

Over: CEDAR DRAW CREEK

5.9 N. 3.0 W. FILER, Twin Falls, ID

Built 1999 Load: 33.6 t ADT: 240

SH 50

Fair

Over: SNAKE RIVER;HANSEN BR.

8.3 E. TWIN FALLS, Twin Falls, ID

Built 1966 Load: 40.8 t ADT: 8,700

STC2730;3000 E. RD

Fair

Over: LOW LINE CANAL

3S.TWIN FALLS;3500N-3000E, Twin Falls, ID

Built 1964 Load: 42.6 t ADT: 1,400

US 93

Fair

Over: LOW LINE CANAL

39.7 N. NEVADA LINE, Twin Falls, ID

Built 1994 Load: 47.2 t ADT: 6,900

STC2721;2200 E. RD

Fair

Over: CEDAR DRAW

1.3 S. FILER;3765N-2200E, Twin Falls, ID

Built 1964 Load: 60.8 t ADT: 1,200

N 3700 E ROAD

Fair

Over: PERRINE COULEE CANAL

1.3 W. 1.3 S. HANSEN, Twin Falls, ID

Built 1962 Load: 76.2 t ADT: 70

2300 EAST ROAD

Good

Over: SALMON CANAL LATERAL #2

0.7 N. 1.0 W. HOLLISTER, Twin Falls, ID

Built 1983 Load: 27.2 t ADT: 20

4248: SHOSHONE CRE

Good

Over: Shoshone Creek

11.1 mi E of I93, Twin Falls, ID

Built 1985 Load: 28.2 t ADT: 25

4200 NORTH ROAD

Good

Over: DEEP CREEK

0.6 N. 4.4 W. BUHL, Twin Falls, ID

Built 2023 Load: 32.7 t ADT: 132

STC2735;2900 E. RD

Good

Over: HIGH LINE CANAL

4 S. TWIN FALLS, Twin Falls, ID

Built 2006 Load: 39.0 t ADT: 820

RIVER ROAD

Good

Over: DEEP CREEK

4.0 N. 2.5 W BUHL, Twin Falls, ID

Built 2018 Load: 48.0 t ADT: 130

STC2714;3700 NORTH

Poor

Over: ROCK CREEK

1.0 S. 0.4 E. TWIN FALLS, Twin Falls, ID

Built 1973 Load: 99.9 t ADT: 6,300

Read our methodology — how this data is sourced, computed, and verified.

Related

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial