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

ON TSR 327

Poor

Over: BRANCH BEAVER RUN

2 MI E SYLVIS, Clearfield, PA

Built 1949 Load: 24.5 t ADT: 193

SR 4013

Poor

Over: RATTLING CREEK

.75 MI. S. OF LYKENS, Dauphin, PA

Built 1974 Load: 24.5 t ADT: 341

CHICHESTER AVENUE

Poor

Over: INTERSTATE 95

1.1MI.N.DELAWARE 42F08, Delaware, PA

Built 1967 Load: 24.5 t ADT: 17,242

GLEN RIDDLE ROAD

Poor

Over: CHROME RUN CREEK

1MI.WEST PA 352 33H09, Delaware, PA

Built 1930 Load: 24.5 t ADT: 4,050

SR 8 WATERFORD RD

Poor

Over: OVER FRENCH CREEK E BR

AMITY TOWNSHIP, Erie, PA

Built 1925 Load: 24.5 t ADT: 3,482

SR 3003 SHERMAN BR

Poor

Over: OVER CONNEAUT CK W BR

CONNEAUT TOWNSHIP, Erie, PA

Built 1840 Load: 24.5 t ADT: 201

ALBRIGHT ROAD

Poor

Over: CHAMPION CREEK

150 W OF MELCROFT ROAD, Fayette, PA

Built 1950 Load: 24.5 t ADT: 190

T-390 LODGE ROAD

Poor

Over: BRUSH CREEK

1.5 MI.S.CRYSTAL SPRING, Fulton, PA

Built 1940 Load: 24.5 t ADT: 41

TOWNSHIP ROAD 491

Poor

Over: SMITH CREEK

FRANKLIN TOWNSHIP, Greene, PA

Built 1926 Load: 24.5 t ADT: 30

SR3025

Poor

Over: BLACKLEGS CREEK

BLACKLEGS HOOPER, Indiana, PA

Built 1940 Load: 24.5 t ADT: 221

RESH RD

Poor

Over: LITTLE COCALICO CREEK

600 FT SOUTH OF SR 1055, Lancaster, PA

Built 1950 Load: 24.5 t ADT: 105

I-81 NB

Poor

Over: JOHNSON ALLAN SPRING RUN

W-B TWP .2 M N EXIT 165, Luzerne, PA

Built 1966 Load: 24.5 t ADT: 24,394

SR 1050 (DEAD END)

Poor

Over: TOBY CREEK

KINGSTON TP JCT. TR309, Luzerne, PA

Built 1963 Load: 24.5 t ADT: 38

T-638 BR#335

Poor

Over: LAUREL RUN

1.0 MI. SE OF MORELAND, Lycoming, PA

Built 1920 Load: 24.5 t ADT: 52

BRIDGE 1851

Poor

Over: OVER TOWEL WORKS RUN

ORANGEVLE OVER TOWEL WRK, Mercer, PA

Built 1964 Load: 24.5 t ADT: 737

PA 435 (LR 254)

Poor

Over: SR 380 (LR 1002) NB

OVER I-380-EXIT 13(6), Monroe, PA

Built 1969 Load: 24.5 t ADT: 3,590

SR 1002(LR 45024)

Poor

Over: BRODHEAD CREEK

CHERRY LANE ROAD, Monroe, PA

Built 1941 Load: 24.5 t ADT: 1,016

ORVILLA ROAD

Poor

Over: W. BR. NESHAMINY CREEK

HATFIELD TWP 16J5/3032E7, Montgomery, PA

Built 1927 Load: 24.5 t ADT: 7,941

PERKIOMENVILLE RD.

Poor

Over: SCIOTO CREEK

FREDERICK 13E1/3028H3, Montgomery, PA

Built 1932 Load: 24.5 t ADT: 1,645

NIANTIC ROAD

Poor

Over: W. BR. PERKIOMEN CREEK

NIANTIC 2803G9, Montgomery, PA

Built 1931 Load: 24.5 t ADT: 2,468

SR 3001

Poor

Over: SHULTZ CREEK

AT CENTER SQUARE, Perry, PA

Built 1950 Load: 24.5 t ADT: 50

BOOK ROAD

Poor

Over: BULL RUN

1.5 SE BLAIN BULL RUN, Perry, PA

Built 1950 Load: 24.5 t ADT: 75

SR 3008

Poor

Over: S.GLADE CREEK

1 MI.E.OF NEW CENTERVILLE, Somerset, PA

Built 1940 Load: 24.5 t ADT: 554

SR 2027

Poor

Over: E BR TUNKHANNOCK CREEK

CLIFFORD TWP .3M W SR2029, Susquehanna, PA

Built 1984 Load: 24.5 t ADT: 243

T-441 BARTON ROAD

Poor

Over: OVER LT.BROKENSTRAW CK.

PITTSFIELD TOWNSHIP, Warren, PA

Built 1981 Load: 24.5 t ADT: 150

SR 4049

Poor

Over: BURGETTS FORK

SMITH TOWNSHIP, Washington, PA

Built 1910 Load: 24.5 t ADT: 1,097

SR 4057

Poor

Over: BRUSH RUN

BUFFALO & HOPEWELL TWPS., Washington, PA

Built 1947 Load: 24.5 t ADT: 106

CHURCH STREET

Poor

Over: LACKAWAXEN RIVER

Church St Hawley, Wayne, PA

Built 1945 Load: 24.5 t ADT: 850

SR 0981

Poor

Over: MONASTERY RUN

UNITY TOWNSHIP, Westmoreland, PA

Built 1953 Load: 24.5 t ADT: 9,506

SR 4019

Poor

Over: BRUSH CREEK

NORTH HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1912 Load: 24.5 t ADT: 4,763

FARR RD T542

Poor

Over: WEST BR MESHOPPEN CREEK

MESHOPPN TP 1.9M N SR4008, Wyoming, PA

Built 1961 Load: 24.5 t ADT: 358

FRANKLINTOWN ROAD

Poor

Over: NO BR BERMUDIAN CREEK

.7SE CLEAR SPRG/N.BR BERM, York, PA

Built 1955 Load: 24.5 t ADT: 152

INTERSTATE 95

Poor

Over: FRALEY STREET

NEAR BRIDGE ST. 3481K09, Philadelphia, PA

Built 1967 Load: 24.5 t ADT: 251,200

65TH STREET

Poor

Over: COBBS CREEK

SW.PHILA 3699A2, Philadelphia, PA

Built 1906 Load: 24.5 t ADT: 6,279

MOSER RD

Poor

Over: NORFOLK SOUTHERN

3139-A3, Montgomery, PA

Built 1966 Load: 24.5 t ADT: 1,500

FR 124

Poor

Over: SPRING CREEK

N OF DUHRING ON FR124, Forest, PA

Built 1975 Load: 24.6 t ADT: 50

Falls Bridge

Poor

Over: Schuylkill River

Falls Bridge 3479-J9, Philadelphia, PA

Built 1895 Load: 24.9 t ADT: 18,650

SANTIAGO ROAD

Poor

Over: MONTOUR RUN

SANTIAGO NEAR SR 0030, Allegheny, PA

Built 1955 Load: 25.4 t ADT: 1,816

T-850 HOUSER ROAD

Poor

Over: SCRUBGRASS CREEK

525ft W of SR28/66, Armstrong, PA

Built 1980 Load: 25.4 t ADT: 400

PA TPK (I-76)

Poor

Over: SR 1004 (LR 05039)

NEAR ASHCOM, Bedford, PA

Built 1939 Load: 25.4 t ADT: 36,252

SR 4005(LR 06161)

Poor

Over: MECK CREEK

2 MILES NORTH OF US 22, Berks, PA

Built 1929 Load: 25.4 t ADT: 505

FORGE HILL ROAD

Poor

Over: MOSELEM CREEK

MOSELEM FURNACE BRIDGE, Berks, PA

Built 1921 Load: 25.4 t ADT: 649

E. BUTLER AVENUE

Poor

Over: COOKS RUN

NEW BRITIAN BORO. 28E01, Bucks, PA

Built 1926 Load: 25.4 t ADT: 10,742

WASHINGTON CROSSIN

Poor

Over: HOUGHS CREEK / 3038-J5

.3MI.S.TAYLRSVE.RD.32H04, Bucks, PA

Built 1910 Load: 25.4 t ADT: 3,572

PENNSYLVANIA AVE.

Poor

Over: PENNSYLVANIA CANAL

MORRISVILLE BORO. 39C04, Bucks, PA

Built 1930 Load: 25.4 t ADT: 7,983

HOLLOW HORN ROAD

Poor

Over: BRANCH TINICUM CREEK

TINICUM TOWNSHIP 11H05, Bucks, PA

Built 1926 Load: 25.4 t ADT: 100

OLD STREET ROAD

Poor

Over: SEPTA WEST TRENTON BR.

OLD STREET ROAD 41B04, Bucks, PA

Built 1916 Load: 25.4 t ADT: 7,851

T-388 KEPPLE ROAD

Poor

Over: HINCKSTON RUN

.25 MI.N.HINCKSTON RN DAM, Cambria, PA

Built 1978 Load: 25.4 t ADT: 100

SR 4005

Poor

Over: SR 80-I 80

EXIT 147 SNOW SHOE INTER, Centre, PA

Built 1965 Load: 25.4 t ADT: 6,696

CREEK ROAD

Poor

Over: BRANCH BRANDYWINE CREEK

3.6MI.N.OF TR 30 20B07, Chester, PA

Built 1935 Load: 25.4 t ADT: 2,802

Showing 21,651-21,700 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.