Bannock County, ID

25 public highway bridges

Bannock County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Bannock County, Idaho contains 25 public highway bridges. Roughly 24% are rated “Good,” 40% “Fair,” and 4% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

25
Total Bridges
24%
Good
40%
Fair
4%
Poor Condition

Condition Distribution

Good
24% (6)
Fair
40% (10)
Poor
4% (1)

All Bridges (25)

I 15 SBL

Unknown

Over: I 15B;S.POCATELLO IC

2.6 S. POCATELLO, Bannock, ID

Built 1965 ADT: 4,900

I 15 NBL

Unknown

Over: BARTON RD.GS

1.7 S. POCATELLO, Bannock, ID

Built 1964 ADT: 2,400

US 91

Unknown

Over: I 15 NB-SB;VIRGINIA IC

5.5 N. DOWNEY, Bannock, ID

Built 1971 ADT: 12,500

US 91 SBL

Unknown

Over: I 86 EB-WB; CHUBBUCK IC

IN CHUBBUCK, Bannock, ID

Built 2013 ADT: 6,500

S7241;NRTHGTE PKWY

Unknown

Over: I 15 NB-SB;NORTHGATE IC

4.0 N POCATELLO, Bannock, ID

Built 2020 ADT: 29,000

MONTE VISTA DRIVE

Unknown

Over: I 15;MONTE VISTA DR GS

IN POCATELLO, Bannock, ID

Built 1997 ADT: 37,500

SMA7217;S. VALLEY

Unknown

Over: S 2ND;PORTNEUF R;UPRR

1.0 W. OF I-15 IC, Bannock, ID

Built 2016 ADT: 2,000

I 15 SBL

Unknown

Over: SMA 5697;SOUTH VALLEY RD

3.35 SE. POCATELLO, Bannock, ID

Built 2015 ADT: 5,200

IRR BIA RTE 152

Fair

Over: PORTNEUF RIVER

5KM N OF I-86 AT SR30 EXI, Bannock, ID

Built 1960 Load: 5.4 t ADT: 600

E. VIRGINIA ROAD

Fair

Over: MARSH CREEK

0.7 N. 1.7 W. VIRGINIA, Bannock, ID

Built 1959 Load: 17.2 t ADT: 150

STP 7391;S. MAIN

Fair

Over: PORTNEUF RIVER

2.0 S. POCATELLO, Bannock, ID

Built 1967 Load: 22.7 t ADT: 7,800

IRR BIA RTE 68

Fair

Over: SPRING CREEK

16KM W.FT HALL IN BOTTOMS, Bannock, ID

Built 1975 Load: 24.5 t ADT: 60

US 30

Fair

Over: DEER CROSSING

4.7 E. LAVA HOT SPRINGS, Bannock, ID

Built 1976 Load: 28.1 t ADT: 4,300

I 15 NBL

Fair

Over: RAPID CREEK;INKOM

0.1 E. INKOM, Bannock, ID

Built 1963 Load: 29.9 t ADT: 7,750

STP 7151;N MAIN ST

Fair

Over: PORTNEUF RIVER

IN POCATELLO;MAIN ARTHUR, Bannock, ID

Built 1957 Load: 29.9 t ADT: 9,500

W BLACKROCK ROAD

Fair

Over: PORTNEUF R;NW.INKOM BR

0.2 N. 4.0 W. INKOM, Bannock, ID

Built 1948 Load: 32.4 t ADT: 100

I 15 NBL

Fair

Over: PRIVATE RD.;MACHINE PASS

6.9 N. POCATELLO, Bannock, ID

Built 1959 Load: 37.2 t ADT: 14,250

I 86 EBL

Fair

Over: UPRR;CHUBBUCK OVERPASS

0.4 E. CHUBBUCK, Bannock, ID

Built 1963 Load: 39.9 t ADT: 12,750

STC7221;CARSON ST

Good

Over: PORTNEUF RIVER

IN POCATELLO;CARSON ST., Bannock, ID

Built 2023 Load: 32.7 t ADT: 4,500

IRR BIA RTE 68

Good

Over: BIG JIMMEY CREEK

15KM W FT HALL IN BOTTOMS, Bannock, ID

Built 2014 Load: 39.2 t ADT: 35

OLD MALAD HWY

Good

Over: MARSH CREEK

2.0 S. 2.0 W. DOWNEY, Bannock, ID

Built 2018 Load: 42.8 t ADT: 330

US 30

Good

Over: PORTNEUF RIVER

1.9 W. LAVA HOT SPRINGS, Bannock, ID

Built 2008 Load: 46.3 t ADT: 5,800

SMA7217;S. VALLEY

Good

Over: AMI TRAIL

0.3 W. of I15 IC, Bannock, ID

Built 2016 Load: 55.1 t ADT: 5,200

OLYMPUS DR

Good

Over: FUTURE PED UNDERPASS

POCATELLO, Bannock, ID

Built 2018 Load: 55.1 t ADT: 6,500

STC7151;BENTON ST

Poor

Over: PORTNEUF RIVER

IN POCATELLO;BENTON ST, Bannock, ID

Built 1969 Load: 25.4 t ADT: 2,800

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.