State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

MISSION ST

Fair

Over: SOUTH 21ST STREET

061 MISSION ST WEST, Allegheny, PA

Built 1939 Load: 24.5 t ADT: 650

SOUTH MILLVALE AV

Fair

Over: N-S RR E BUSWAY GROSS ST

101 S MILLVALE AVE BRIDGE, Allegheny, PA

Built 1927 Load: 24.5 t ADT: 5,525

MCNEILLY ROAD

Fair

Over: SAW MILL RUN

SW09 SAW MILL RUN NO. 9, Allegheny, PA

Built 1932 Load: 24.5 t ADT: 15,683

RAMP G

Fair

Over: SR 2114 NB SB

1066 RAMP G OVER LR1066, Allegheny, PA

Built 1973 Load: 24.5 t ADT: 1,629

SR3029 (T-300)

Fair

Over: SR0028 NB&SB

HORSESHOE ROAD, Armstrong, PA

Built 1971 Load: 24.5 t ADT: 205

SR0056

Fair

Over: CROOKED CREEK

SOUTH BEND NO.2, Armstrong, PA

Built 1984 Load: 24.5 t ADT: 4,499

SR0068

Fair

Over: SUGAR CREEK

BRADYS BEND NO.8, Armstrong, PA

Built 1923 Load: 24.5 t ADT: 2,748

SR0422 EB&WB

Fair

Over: ALLEG RIV/3001/2011/RR

JUDGE J.FRANK GRAFF, Armstrong, PA

Built 1974 Load: 24.5 t ADT: 17,748

PA 869

Fair

Over: BOBS CREEK

2.0 MI.N.W.OF PAVIA, Bedford, PA

Built 1949 Load: 24.5 t ADT: 399

PA TPK (I-76)

Fair

Over: Spicer Brook

NEAR NEW BUENA VISTA, Bedford, PA

Built 1939 Load: 24.5 t ADT: 31,200

T-578 S.MAIN ST.

Fair

Over: BAREFOOT RUN

PLEASANTVILLE BORO LINE, Bedford, PA

Built 1930 Load: 24.5 t ADT: 271

T579 Hench Street

Fair

Over: BAREFOOT RUN

PLEASANTVILLE BORO LINE, Bedford, PA

Built 1973 Load: 24.5 t ADT: 210

PA625 (LR518)

Fair

Over: ANGELICA CREEK

NEW HOLLAND&LEDGEROCK RDS, Berks, PA

Built 1927 Load: 24.5 t ADT: 3,378

SR 737 (LR 06134)

Fair

Over: MAIDEN CREEK

KEMPTON, Berks, PA

Built 1966 Load: 24.5 t ADT: 989

SR 1039(LR 06035)

Fair

Over: LITTLE LEHIGH CREEK

LONGSWAMP ROAD, Berks, PA

Built 1970 Load: 24.5 t ADT: 2,350

US 422 BUS(LR 146)

Fair

Over: MINERAL SPRINGS CR. STS.

LINDBERGH VIADUCT, Berks, PA

Built 1927 Load: 24.5 t ADT: 8,798

SR 2029(LR 06054)

Fair

Over: ANTIETAM CREEK

ANTIETAM ROAD, Berks, PA

Built 1938 Load: 24.5 t ADT: 2,305

SR 2032(LR06098)

Fair

Over: OYSTERVILLE CREEK

PIKEVILLE BRIDGE, Berks, PA

Built 1924 Load: 24.5 t ADT: 966

SR 3008(LR06056)

Fair

Over: TRIB.TO SPRING CREEK

BROWNSVILLE ROAD, Berks, PA

Built 1934 Load: 24.5 t ADT: 2,087

LONGSDALE DR

Fair

Over: LITTLE LEHIGH CREEK

VILLAGE OF LONGSDALE, Berks, PA

Built 1985 Load: 24.5 t ADT: 100

BERTOLET MIL

Fair

Over: FURNACE CREEK

NEAR PA ROUTE 73, Berks, PA

Built 1920 Load: 24.5 t ADT: 250

SR 6

Fair

Over: SUGAR CREEK

4 MI. E.OF LUTHER MILLS, Bradford, PA

Built 1979 Load: 24.5 t ADT: 3,390

T-699 BR # 1

Fair

Over: WYSOX CREEK

BORO OF ROME, Bradford, PA

Built 1991 Load: 24.5 t ADT: 500

INTERSTATE 295 EB

Fair

Over: LR 281 PARALLEL: US 1

1MI.N.LANGHORNE 37H07, Bucks, PA

Built 1972 Load: 24.5 t ADT: 23,069

STREET ROAD

Fair

Over: SEPTA / 3261-C8

.1MI.TO LR 182 41B04, Bucks, PA

Built 1967 Load: 24.5 t ADT: 40,268

EASTON ROAD

Fair

Over: TURK ROAD(T389)

US 611 BYPASS 29B03, Bucks, PA

Built 1973 Load: 24.5 t ADT: 4,664

OLD BETHLEHEM ROAD

Fair

Over: COOKS CREEK

PLEASANT VALLEY 02H13, Bucks, PA

Built 1777 Load: 24.5 t ADT: 1,148

CUTTALOSSA ROAD

Fair

Over: CUTTALOSSA CREEK

SOLEBURY TOWNSHIP 18G09, Bucks, PA

Built 1932 Load: 24.5 t ADT: 50

PA TPK (I-276)

Fair

Over: SR 0132 LR252

SOUTH OF TREVOSE, Bucks, PA

Built 1954 Load: 24.5 t ADT: 44,130

PA 179 (SR 0179)

Fair

Over: DELAWARE RIVER

NEW HOPE BOROUGH 25H02, Bucks, PA

Built 1904 Load: 24.5 t ADT: 10,300

SR0308

Fair

Over: B&LE RR CRK T-675

STONY RUN, Butler, PA

Built 1956 Load: 24.5 t ADT: 3,384

SR0528

Fair

Over: SR0079 NB

ROLLING HILLS NB, Butler, PA

Built 1968 Load: 24.5 t ADT: 8,016

SR2012

Fair

Over: THORN CREEK

FRAZIERS MILL NO.1, Butler, PA

Built 1942 Load: 24.5 t ADT: 4,448

PA TPK (I-76)

Fair

Over: COAL RUN

NEAR OGLE, Butler, PA

Built 1952 Load: 24.5 t ADT: 22,663

SR 1021

Fair

Over: BEAVERDAM RUN

BEAVER VALLEY, Cambria, PA

Built 1959 Load: 24.5 t ADT: 2,041

I-80 WB(LR 1009)

Fair

Over: BLACK CREEK

1.5 MI.E.OF TURNPIKE, Carbon, PA

Built 1964 Load: 24.5 t ADT: 8,298

US 209(LR 164)

Fair

Over: POHOPOCO CREEK

HARRITY, Carbon, PA

Built 1968 Load: 24.5 t ADT: 13,004

PA 248 WB CANTILEV

Fair

Over: PA 248 EB(LR 163)

CANTILEVER, Carbon, PA

Built 1962 Load: 24.5 t ADT: 11,920

SR 3001 (LR 13006)

Fair

Over: MAHONING CREEK

5 MI.S.OF SUMMIT HILL, Carbon, PA

Built 1938 Load: 24.5 t ADT: 4,303

SR 80-I 80

Fair

Over: TWP RD 476

7 MILES EAST EXIT 161, Centre, PA

Built 1968 Load: 24.5 t ADT: 11,545

SR 322-US 322

Fair

Over: SINKING CREEK

TUSSEYVILLE, Centre, PA

Built 1930 Load: 24.5 t ADT: 13,783

T-905 STAHLS LANE

Fair

Over: BIG FILL RUN

290 FT EAST SR 350, Centre, PA

Built 1995 Load: 24.5 t ADT: 75

POTTSTOWN BY-PASS

Fair

Over: HANOVER STREET

POTTSTOWN 2E12, Chester, PA

Built 1965 Load: 24.5 t ADT: 60,147

WICKERTON ROAD

Fair

Over: MID. BR. WHITE CLAY CR.

.5MI.S.TWP.LINE 53K2, Chester, PA

Built 1961 Load: 24.5 t ADT: 2,453

LAFAYETTE RD(T437)

Fair

Over: WEST BR BRANDYWINE CREEK

WEST BRANDYWINE 3469-H3, Chester, PA

Built 1914 Load: 24.5 t ADT: 286

JAMES MILL ROAD

Fair

Over: BRANCH FRENCH CREEK

3200FT N.INTER T503248-K7, Chester, PA

Built 2001 Load: 24.5 t ADT: 500

SR0080 WB

Fair

Over: SR0338

TURKEY WB, Clarion, PA

Built 1966 Load: 24.5 t ADT: 9,965

SR4008

Fair

Over: LICKING CREEK

HUEFNER NO.2, Clarion, PA

Built 1961 Load: 24.5 t ADT: 72

SR 322-US 322

Fair

Over: MOOSE CREEK

CLEARFIELD, Clearfield, PA

Built 1966 Load: 24.5 t ADT: 5,499

T-209 THOMPSON RD

Fair

Over: LICK RUN

2000 FT WEST OF SR 1006, Clearfield, PA

Built 1974 Load: 24.5 t ADT: 10

Showing 1,301-1,350 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

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

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.