Pondera County, MT

96 public highway bridges

Pondera County Bridge Snapshot

Pondera County, Montana contains 96 public highway bridges in the FHWA National Bridge Inventory. Roughly 49% are rated “Good,” 39.6% “Fair,” 3.1% “Poor,” and 3.1% 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 MT 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.

96

Total Bridges

49%

Good

3.1%

Poor

3.1%

Structurally Deficient

Condition Distribution

Good

49% (47)

Fair

39.6% (38)

Poor

3.1% (3)

SD

3.1% (3)

All Bridges (96)

Sort:

WESTRIDGE RD

Over: INT BULLHEAD RD-I 15 008

9M SW SHELBY, Pondera, MT

Built 1976 ADT: 1,294

OVERPASS RD

Over: SEP I 15 009

1M N BRADY, Pondera, MT

Built 1964 ADT: 1,603

S 21

Over: INT MIDWAY I 15

3M SE CONRAD, Pondera, MT

Built 1972 ADT: 1,603

S 21

Over: INT CONRAD I 15

CONRAD, Pondera, MT

Built 1972 ADT: 1,461

S 44

Over: INT VALIER I 15

9M N CONRAD, Pondera, MT

Built 1972 ADT: 1,294

SOLLID RD

Over: SEP SOLLID ROAD-I 15

CONRAD, Pondera, MT

Built 1972 ADT: 1,461

S 365-BRADY RD

Over: INT BRADY-I 15

BRADY, Pondera, MT

Built 1964 ADT: 1,603

S 366-LEDGER RD

Over: INT LEDGER-I 15

6M N CONRAD, Pondera, MT

Built 1972 ADT: 1,490

DUPUYER CREEK RD

Over: DUPUYER CREEK 067

8M SW DUPUYER, Pondera, MT

Built 1938 Load: 7.3 t ADT: 100

BULLHEAD RD

Over: BIRCH CREEK 022

7M NW VALIER, Pondera, MT

Built 1950 Load: 8.2 t ADT: 100

DRY FORK RD

Over: NO NAME DITCH 052

4M E WILLIAMS, Pondera, MT

Built 1950 Load: 9.1 t ADT: 54

STOLTZ RD

Over: BIRCH CREEK 001

12M W VALIER, Pondera, MT

Built 1976 Load: 9.1 t ADT: 100

E LAKE RD

Over: PONDERA COULEE 029

15M W CONRAD, Pondera, MT

Built 1960 Load: 9.1 t ADT: 122

E LAKE RD

Over: LAKE FRANCIS CANAL 075

3M SE VALIER, Pondera, MT

Built 1960 Load: 10.0 t ADT: 122

KINGSTON MINE RD

Over: C CANAL 025

1M W VALIER, Pondera, MT

Built 1960 Load: 10.0 t ADT: 100

TRUNK BUTTE RD

Over: NO NAME COULEE 078

7M N WILLIAMS, Pondera, MT

Built 1960 Load: 10.9 t ADT: 100

OLD SHELBY RD

Over: PONDERA CANAL 012

5M NW LEDGER, Pondera, MT

Built 1960 Load: 10.9 t ADT: 60

OVERPASS RD

Over: S PONDERA COULEE 014

3M N BRADY, Pondera, MT

Built 1982 Load: 12.7 t ADT: 100

HAWKEYE RD

Over: PONDERA COULEE 047

10M SW CONRAD, Pondera, MT

Built 1950 Load: 12.7 t ADT: 100

E LAKE RD

Over: LONE MAN COULEE

6M SE VALIER, Pondera, MT

Built 1975 Load: 13.6 t ADT: 122

SKYVIEW RD S

Over: NO NAME 070

6M E DUPUYER, Pondera, MT

Built 1960 Load: 16.3 t ADT: 100

WILLIAMS RD

Over: NO NAME DITCH 053

WILLIAMS, Pondera, MT

Built 1960 Load: 17.2 t ADT: 54

HILLSIDE RD

Over: NO NAME DITCH 049

1M W CONRAD, Pondera, MT

Built 1960 Load: 17.2 t ADT: 100

PRIMROSE RD N

Over: PONDERA COULEE 018

4M NE CONRAD, Pondera, MT

Built 1979 Load: 17.2 t ADT: 100

MESSENGER RD

Over: NO NAME COULEE 072

6M NW CONRAD, Pondera, MT

Built 1960 Load: 18.1 t ADT: 100

SOLLID RD

Over: PONDERA COULEE

10M E CONRAD, Pondera, MT

Built 1964 Load: 19.1 t ADT: 69

SWANSON RD

Over: DRAINAGE 062

3M N VALIER, Pondera, MT

Built 1986 Load: 20.0 t ADT: 100

S 366-LEDGER RD

Over: DRY FORK MARIAS RIVER

LEDGER, Pondera, MT

Built 1952 Load: 20.0 t ADT: 128

CONRAD DUPUYER RD

Over: DRY FORK MARIAS RIVER

10M E DUPUYER, Pondera, MT

Built 1966 Load: 20.9 t ADT: 53

IRR - S 358

Over: BIRCH CREEK

7M NW VALIER, Pondera, MT

Built 1965 Load: 22.7 t ADT: 290

CONRAD DUPUYER RD

Over: DRAINAGE

9M NW CONRAD, Pondera, MT

Built 1965 Load: 22.7 t ADT: 59

IRR BIA RTE 1

Over: BIRCH CREEK

13 KM SE OF HEART BUTTE, Pondera, MT

Built 1966 Load: 24.5 t ADT: 700

US HWY 91 N

Over: DRY FORK MARIAS 080

2M N CONRAD, Pondera, MT

Built 1931 Load: 25.4 t ADT: 649

US HWY 91 N

Over: PONDERA CANAL 081

8M N CONRAD, Pondera, MT

Built 1931 Load: 25.4 t ADT: 649

I 15

Over: PONDERA CANAL

9M N CONRAD, Pondera, MT

Built 1972 Load: 27.2 t ADT: 1,490

S 366-LEDGER RD

Over: DRAINAGE

4M W LEDGER, Pondera, MT

Built 1954 Load: 28.1 t ADT: 186

IRR - US 89

Over: BIRCH CREEK

14M W VALIER, Pondera, MT

Built 1965 Load: 29.0 t ADT: 947

BLAZEN RD

Over: PONDERA COULEE 079

CONRAD-BLAZEN RD, Pondera, MT

Built 2004 Load: 30.8 t ADT: 100

CONRAD DUPUYER RD

Over: DRAINAGE

8M E DUPUYER, Pondera, MT

Built 1953 Load: 30.8 t ADT: 53

S 21

Over: IRRIGATION CANAL

1M S CONRAD, Pondera, MT

Built 1988 Load: 31.8 t ADT: 702

PRICE RD N

Over: PONDERA COULEE 007

9M E CONRAD, Pondera, MT

Built 1970 Load: 32.7 t ADT: 100

MIDWAY RD E

Over: PONDERA COULEE 003

16M NE BRADY, Pondera, MT

Built 1960 Load: 32.7 t ADT: 59

COALMINE RD

Over: DRAINAGE 032

15M W CONRAD, Pondera, MT

Built 1986 Load: 32.7 t ADT: 100

E LAKE RD

Over: DRY FK MARIAS RIVER 030

15M W CONRAD, Pondera, MT

Built 1960 Load: 39.9 t ADT: 122

PENDROY RD

Over: DRAINAGE

5M W CONRAD, Pondera, MT

Built 1955 Load: 60.8 t ADT: 480

I 15

Over: S PONDERA COULEE

3M N BRADY, Pondera, MT

Built 1964 Load: 99.9 t ADT: 3,206

MESSENGER ROAD

Over: NO NAME DITCH 074

WILLIAMS, Pondera, MT

Built 2023 ADT: 12

VALIER DUPUYER RD

Over: VALIER CANAL 035

5M NE DUPUYER, Pondera, MT

Built 1950 Load: 12.7 t ADT: 119

BULLHEAD RD

Over: NO NAME COULEE 021

7M NE WILLIAMS, Pondera, MT

Built 1960 Load: 13.6 t ADT: 100

KELLY RD

Over: PONDERA COULEE 019

5M NE CONRAD, Pondera, MT

Built 1960 Load: 15.4 t ADT: 100

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

Related

Browse all → | Rankings →

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

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026