Madison County, ID

27 public highway bridges

Madison County Bridge Snapshot

Madison County, Idaho contains 27 public highway bridges in the FHWA National Bridge Inventory. Roughly 22.2% are rated “Good,” 63% “Fair,” 0% “Poor,” and 0% 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.

27
Total Bridges
22.2%
Good
0%
Poor
0%
Structurally Deficient

Condition Distribution

Good
22.2% (6)
Fair
63% (17)
Poor
0% (0)
SD
0% (0)

All Bridges (27)

US 20 EBL

Unknown

Over: STP 7726;S.REXBURG IC

1.5 S. REXBURG, Madison, ID

Built 1981 ADT: 16,000

US 20 WBL

Unknown

Over: STP 7726;S.REXBURG IC

1.5 S. REXBURG, Madison, ID

Built 1981 ADT: 16,000

US 20 EBL

Unknown

Over: SH 33;REXBURG IC

0.5 W. REXBURG;SH 33, Madison, ID

Built 1981 ADT: 19,500

US 20 WBL

Unknown

Over: THORTON IC

AT THORTON, Madison, ID

Built 2016 ADT: 2,700

STC 6774;E 2000 N

Fair

Over: S.FK.TETON RIVER

1.2 S. 1 E. SUGAR CITY, Madison, ID

Built 1959 Load: 12.7 t ADT: 1,600

STC 6785;DIGGER DR

Fair

Over: TETON ISLAND CANAL

0.4 S. 0.5 E. SUGAR CITY, Madison, ID

Built 1959 Load: 13.6 t ADT: 700

N 3600 E

Fair

Over: COMBINED SNAKE RIVERS

5.1 S. 9.6 W. REXBURG, Madison, ID

Built 1968 Load: 16.3 t ADT: 270

STC 6760;N 3000 W

Fair

Over: S.FK.TETON R.;W.REXBURG

2.4 W. REXBURG, Madison, ID

Built 1977 Load: 16.3 t ADT: 640

N. 1ST EAST STREET

Fair

Over: REXBURG CANAL

IN REXBURG;N.1ST E.ST, Madison, ID

Built 1977 Load: 16.3 t ADT: 930

N 3RD E

Fair

Over: REXBURG CANAL

IN REXBURG;BARNEY DAIRY, Madison, ID

Built 1980 Load: 16.3 t ADT: 800

STC 6768; S2000W

Fair

Over: REID CANAL

1.3 E. 2.7 S. THORNTON, Madison, ID

Built 1960 Load: 20.9 t ADT: 2,000

W 6000 S

Fair

Over: TEXAS SLOUGH;NW.THORNTON

2.2 N. 2.5 W. THORNTON, Madison, ID

Built 1977 Load: 20.9 t ADT: 50

W 2000 S

Fair

Over: TEXAS SLOUGH CANAL

0.6 E. BURTON, Madison, ID

Built 1955 Load: 21.6 t ADT: 330

S YELLOWSTONE HWY

Fair

Over: TEXAS SLOUGH

AT THORNTON, Madison, ID

Built 1938 Load: 22.7 t ADT: 120

W 4000 N

Fair

Over: FARMERS CANAL

4.0 N. 0.3 W. REXBURG, Madison, ID

Built 1977 Load: 28.1 t ADT: 80

N 4000 E

Fair

Over: MOODY CREEK

2.1 N. 4.6 E. REXBURG, Madison, ID

Built 1977 Load: 28.1 t ADT: 540

S 6000 W

Fair

Over: TEXAS SLOUGH CANAL

5.34 SW REXBURG, Madison, ID

Built 1970 Load: 28.1 t ADT: 50

SH 33

Fair

Over: HENRY'S FK.SNAKE RIVER

4.5 W. REXBURG, Madison, ID

Built 1977 Load: 29.9 t ADT: 3,000

W 1ST SOUTH ST

Fair

Over: REXBURG CANAL

IN REXBURG; W 1ST S ST, Madison, ID

Built 2019 Load: 31.8 t ADT: 800

US 20 WBL

Fair

Over: S.FK.TETON RIVER

0.9 N. REXBURG, Madison, ID

Built 1980 Load: 37.2 t ADT: 9,500

E 3RD N; SALEM CH

Fair

Over: SALEM CANAL

IN SUGAR CITY;3RD N.ST, Madison, ID

Built 1978 Load: 42.6 t ADT: 260

N 3000 E

Good

Over: TETON ISLAND CANAL

4.4 N. 3.6 E. REXBURG, Madison, ID

Built 1977 Load: 28.1 t ADT: 110

W 4500 N

Good

Over: ST ANTHONY CANAL

0.22 W PLANO, Madison, ID

Built 1990 Load: 28.1 t ADT: 10

N 2000 E

Good

Over: N.FK.TETON RIVER

1.5 N. SUGAR CITY, Madison, ID

Built 1976 Load: 31.8 t ADT: 1,700

3309: MARKET LAKE

Good

Over: Market Lake Canel

.2 mi SW of Twin Butte Rd, Madison, ID

Built 2000 Load: 35.6 t ADT: 25

SH 33

Good

Over: CANYON CREEK

8.8 E. NEWDALE, Madison, ID

Built 2006 Load: 38.1 t ADT: 3,400

S 5500 W

Good

Over: TEXAS SLOUGH

2.6 N 2.0 W THORNTON, Madison, ID

Built 2012 Load: 50.2 t ADT: 150

Related

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