Northumberland County, PA

193 public highway bridges

Northumberland County Bridge Snapshot

Northumberland County, Pennsylvania contains 193 public highway bridges in the FHWA National Bridge Inventory. Roughly 41.5% are rated “Good,” 41.5% “Fair,” 4.1% “Poor,” and 4.1% 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 PA 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.

193

Total Bridges

41.5%

Good

4.1%

Poor

4.1%

Structurally Deficient

Condition Distribution

Good

41.5% (80)

Fair

41.5% (80)

Poor

4.1% (8)

SD

4.1% (8)

All Bridges (193)

Sort:

SR 61

Over: SUSQUEHANNA RIVER

SUNBURY RIVER BRIDGE, Northumberland, PA

Built 1986 ADT: 3,958

I-80 EB

Over: SR405 & W BR SUSQUEHANNA

MILTON I80EB RIVER BRIDGE, Northumberland, PA

Built 1962 ADT: 4,625

I-80 WB

Over: SR405& WB SUSQUEHANNA R.

MILTON I80WB RIVER BRIDGE, Northumberland, PA

Built 1962 ADT: 4,625

SR I-80 EBL

Over: OVER SR254 & LIMESTONE C

1.5 MI E OF MILTON, Northumberland, PA

Built 1962 ADT: 1,705

SR 147

Over: OVER S.R. 45

0.5 MI E OF MONTANDON, Northumberland, PA

Built 1971 ADT: 3,722

TR 147

Over: OVER SR 254

BORO OF MILTON, Northumberland, PA

Built 1971 ADT: 5,565

T-666

Over: 1045 OVER I-180 EB & WB

2.5 MI.SOUTH OF MUNCY, Northumberland, PA

Built 1970 ADT: 8,024

I-180 EBL

Over: I-180 OVER S.R.54

5.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 ADT: 5,872

I-180 WBL

Over: I-180 OVER S.R. 54

5.5 MILES SOUTH OF MUNCY, Northumberland, PA

Built 1970 ADT: 5,872

SR 0180 EB

Over: SR44,NORSOUTH,WARRIOR RU

3 MI E OF WATSONTOWN, Northumberland, PA

Built 1971 ADT: 923

SR 0180 WB

Over: SR44, NS RR, WARRIOR RUN

3 MI E OF WATSONTOWN, Northumberland, PA

Built 1971 ADT: 923

I-180 EASTBOUND

Over: OVER S.R. 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 ADT: 3,160

I-180 WBL

Over: OVER SR 1007

2 MILES NORTH OF MILTON, Northumberland, PA

Built 1971 ADT: 3,160

S.R. 642

Over: OVER S.R. 147

1 MI E OF MILTON, Northumberland, PA

Built 1970 ADT: 8,487

SR 1025

Over: OVER SR 147

1 MI S OF MILTON, Northumberland, PA

Built 1971 ADT: 7,851

SR 0405

Over: NORFOLK SOUTHER RR,T-630

VILLAGE OF DEWART, Northumberland, PA

Built 1997 ADT: 100

I-80 WESTBOUND

Over: I-180 AND RAMPS

2 MI. N OF MILTON, Northumberland, PA

Built 2001 ADT: 8,622

I-80 EASTBOUND

Over: I-180 & SR 147 MID-POINT

2 MI N OF MILTON, Northumberland, PA

Built 2002 ADT: 9,520

SR 147 FUTURE NB

Over: OVER SR 254

BORO OF MILTON, Northumberland, PA

Built 2002 ADT: 5,565

SR 147

Over: SR 45

0.5 MI E OF MONTANDON, Northumberland, PA

Built 2003 ADT: 3,722

Service Rd "A"

Over: CSVT SR 15

.5 MI N OF NORTHUMBERLAND, Northumberland, PA

Built 2018 ADT: 300

SR 1006

Over: OVER I-180 EBL & WBL

2 MI. N.E.OF WATSONTOWN, Northumberland, PA

Built 2021 ADT: 7,799

SR 15

Over: Susquehanna River

Susq River XING CSVT, Northumberland, PA

Built 2019 ADT: 13,918

SR 147

Over: SR 1024

CSVT over Ridge RD SR 102, Northumberland, PA

Built 2022 ADT: 3,512

SR 147

Over: SR 1024

CSVT over Ridge RD SR 102, Northumberland, PA

Built 2022 ADT: 3,512

KRICKBAUN

Over: S. BR. of ROARING CREEK

E OF ELYSBURG, Northumberland, PA

Built 1876 Load: 3.6 t ADT: 250

HIMMEL'S

Over: SCHWABEN CREEK

0.6 MI ENE OF REBUCK, Northumberland, PA

Built 1874 Load: 3.6 t ADT: 25

SR 0405

Over: N. B. SUSQUEHANNA RIVER

SUNBURY/PACKER IS.RVER BR, Northumberland, PA

Built 1988 Load: 10.0 t ADT: 13,307

FERRY ROAD

Over: FIDLERS RUN

0.5 MI S OF HERNDON, Northumberland, PA

Built 1960 Load: 10.9 t ADT: 150

SR 61

Over: SHAMOKIN CREEK

CITY OF SUNBURY, Northumberland, PA

Built 1933 Load: 18.1 t ADT: 9,706

SR 4009

Over: OVER SHAMOKIN CREEK

1.5 MI EAST OF SUNBURY, Northumberland, PA

Built 1974 Load: 20.9 t ADT: 680

T-572 TURBOT TWP.

Over: MUDDY RUN

0.5 MI N OF INT T589 T572, Northumberland, PA

Built 1969 Load: 24.5 t ADT: 50

PA 487

Over: SHAMOKIN CREEK

VILLAGE OF PAXINOS, Northumberland, PA

Built 1947 Load: 25.4 t ADT: 9,307

SR 2007

Over: OVER SHAMOKIN CREEK

2 MI E OF SNYDERTOWN, Northumberland, PA

Built 1974 Load: 25.4 t ADT: 122

SR 642

Over: ROSS RUN

VILLAGE OF POTTSGROVE, Northumberland, PA

Built 1930 Load: 27.2 t ADT: 1,899

S.R 3005

Over: SCHWABEN CREEK

4.5 MI E OF HERNDON, Northumberland, PA

Built 1948 Load: 27.2 t ADT: 65

S.R. 4016

Over: OVER PLUM CREEK

1.5 MI SE OF HAMILTON, Northumberland, PA

Built 1939 Load: 27.2 t ADT: 871

SR 4022

Over: OVER BOILE RUN

.5 MI W OF RESLER, Northumberland, PA

Built 1934 Load: 28.1 t ADT: 221

SR 487

Over: OVER BR OF SHAMOKIN CRK

VILLAGE OF PAXINOS, Northumberland, PA

Built 1947 Load: 29.0 t ADT: 9,307

SR 0405

Over: TRIB WB SUSQEHANNA RVR

2 MI N OF NORTHUMBERLAND, Northumberland, PA

Built 1938 Load: 29.9 t ADT: 13,918

SR 225

Over: OVER ZERBE RUN

VILLAGE OF TREVORTON, Northumberland, PA

Built 1934 Load: 29.9 t ADT: 1,604

SR 3018

Over: OVER MAHANTANGO CREEK

6.25 MI E OF PILLOW, Northumberland, PA

Built 1941 Load: 29.9 t ADT: 819

T-460

Over: SCHWABEN CREEK

EAST OF REBUCK, Northumberland, PA

Built 1974 Load: 29.9 t ADT: 50

S.R. 225

Over: OVER MAHANOY CREEK

VILLAGE OF DORNSIFE, Northumberland, PA

Built 1941 Load: 30.8 t ADT: 2,104

SR 3010

Over: OVER MOUSE RUN

VILLAGE OF RED CROSS, Northumberland, PA

Built 1946 Load: 30.8 t ADT: 740

SR 3018

Over: OVER SNOW CREEK

6 MILES EAST OF PILLOW, Northumberland, PA

Built 1938 Load: 30.8 t ADT: 819

S.R. 11

Over: JOHNSONS RUN

1.5 MI NE OF NORTHD BORO, Northumberland, PA

Built 1942 Load: 32.7 t ADT: 11,601

SR 54

Over: TRIB.TO DELEWARE RUN

3.5 MI EAST OF DEWART, Northumberland, PA

Built 1958 Load: 32.7 t ADT: 2,296

S.R. 225

Over: MAHANTANGO CREEK

VILLAGE OF PILLOW, Northumberland, PA

Built 1975 Load: 32.7 t ADT: 2,731

SR 0405

Over: OVER WARRIOR RUN CREEK

1 MI S OF WATSONTOWN, Northumberland, PA

Built 1925 Load: 32.7 t ADT: 4,703

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

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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