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

US422BUS (LR 149)

Fair

Over: LR 06150 NORF/SOUTH

INTERSECTION PENN AVE, Berks, PA

Built 1977 Load: 52.6 t ADT: 25,037

I-99 / US 220 NBL

Fair

Over: SR 1001/BUSINESS US 220

.5 MI.S.OF ALTOONA, Blair, PA

Built 1984 Load: 52.6 t ADT: 15,895

SR 4018

Fair

Over: RIGGLES GAP RUN

.5 MI.W.OF PINECROFT, Blair, PA

Built 1931 Load: 52.6 t ADT: 1,583

SR 14

Fair

Over: TRIB SOUTH FORK SUGAR CR

2 MI.S.OF TROY BOROUGH, Bradford, PA

Built 1951 Load: 52.6 t ADT: 4,448

FERRY RD./PARK AVE

Fair

Over: NORTH BR NESHAMINY CREEK

CHALFONT BOROUGH 27K02, Bucks, PA

Built 1970 Load: 52.6 t ADT: 5,759

LR 326 SR 0532

Fair

Over: PA TURNPIKE(I-276)

NEAR FEASTERVILLE, Bucks, PA

Built 1954 Load: 52.6 t ADT: 25,807

US 1

Fair

Over: WASHINGTON ST.

MORRISVILLE BOROUGH, Bucks, PA

Built 1952 Load: 52.6 t ADT: 53,000

T495 Stevens Road

Fair

Over: NORTH BR.BLACKLICK CREEK

2 MI.N.OF COLVER, Cambria, PA

Built 1989 Load: 52.6 t ADT: 500

ASH STREET

Fair

Over: SOLOMON RUN

JOHNSTOWN ASH STREET, Cambria, PA

Built 1987 Load: 52.6 t ADT: 1,025

T-344 UNIONVILLE P

Fair

Over: BALD EAGLE CREEK

.2 MI SE INT SR 220, Centre, PA

Built 1985 Load: 52.6 t ADT: 250

PINE CRK HOLLOW RD

Fair

Over: PINE CREEK

NE OF WOODWARD (PA 45), Centre, PA

Built 1993 Load: 52.6 t ADT: 25

202 BY-PASS RAMPS

Fair

Over: BRANCH VALLEY CREEK

MALVERN 22H7, Chester, PA

Built 1967 Load: 52.6 t ADT: 85,474

BRIDGE ROAD

Fair

Over: E.BR.BRANDYWINE CREEK

SHAWS BRIDGE 40E04, Chester, PA

Built 1952 Load: 52.6 t ADT: 2,290

LR 328 SR 0082

Fair

Over: PA TPK (I-76)

NEAR ELVERSON, Chester, PA

Built 1950 Load: 52.6 t ADT: 6,727

SR 255-PA 255

Fair

Over: WILSON RUN

PENFIELD, Clearfield, PA

Built 1989 Load: 52.6 t ADT: 4,956

SR 4001

Fair

Over: TROUT RUN

HAMMERSLEY FORK, Clinton, PA

Built 1937 Load: 52.6 t ADT: 190

T-439

Fair

Over: CHATHAM RUN

0.65 MI. SE OF WOOLRICH, Clinton, PA

Built 1955 Load: 52.6 t ADT: 110

SR 42

Fair

Over: LITTLE FISHING CREEK

3 MILES N OF MILLVILLE, Columbia, PA

Built 1939 Load: 52.6 t ADT: 1,732

SR 4031

Fair

Over: OVER LITTLE FISHING CR.

1 MI NE OF SERENO, Columbia, PA

Built 1962 Load: 52.6 t ADT: 205

SR 1016 BROWN HILL

Fair

Over: OVER MOSEY RUN

BLOOMFIELD TOWNSHIP, Crawford, PA

Built 1936 Load: 52.6 t ADT: 291

SR 2003 PARK DR.

Fair

Over: YELLOW BREECHES CREEK

2 MI.W.OF BOILING SPRINGS, Cumberland, PA

Built 1960 Load: 52.6 t ADT: 3,815

I-83 SB; SR 0083

Fair

Over: SR 0081 NB & SR 0083 NB

UPPER LEVEL (3LEV CROSS), Dauphin, PA

Built 1969 Load: 52.6 t ADT: 28,234

MARPLE ROAD(RELOC)

Fair

Over: I-476;CREEK RD;DARBY

NR.HAVERFORD HOSP. 25K05, Delaware, PA

Built 1988 Load: 52.6 t ADT: 4,492

SR 2001

Fair

Over: TOBY CREEK

BROCKPORT, Elk, PA

Built 1962 Load: 52.6 t ADT: 758

T-301 (RIVER ROAD)

Fair

Over: MILLSTONE CREEK

IN VILLAGE OF MILLSTONE, Elk, PA

Built 1989 Load: 52.6 t ADT: 300

T-432 JACKSON ROAD

Fair

Over: WEST CREEK

146 E OF SR 1008 INTER, Elk, PA

Built 1906 Load: 52.6 t ADT: 650

SR 290 STATION RD

Fair

Over: OVER SR 90 EB/WB

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1994 Load: 52.6 t ADT: 4,112

SR 2025 SCIOTA RD

Fair

Over: OVER HARE CREEK

CITY OF CORRY, Erie, PA

Built 1937 Load: 52.6 t ADT: 1,311

SR 62

Fair

Over: OVER E.HICKORY CREEK

HICKORY TOWNSHIP, Forest, PA

Built 1986 Load: 52.6 t ADT: 1,022

PA 641; Newburg rd

Fair

Over: PAXTONS RUN

1.5 MI.E. OF ROXBURY, Franklin, PA

Built 1934 Load: 52.6 t ADT: 1,356

T-560 CREEK ROAD

Fair

Over: CONOCOCHEAGUE CREEK W.BR

0.8 MI E OF SR 075, Franklin, PA

Built 1950 Load: 52.6 t ADT: 222

T-459 GRAPEVINE RD

Fair

Over: BACK CREEK TRIB

1.5 MI EAST OF SR 3013, Franklin, PA

Built 1929 Load: 52.6 t ADT: 250

I-70 EBL RAMPS

Fair

Over: SOUTH BRUSH CREEK

EBL RAMPS CRYSTAL SPRING, Fulton, PA

Built 1963 Load: 52.6 t ADT: 212

SR2009

Fair

Over: CONEMAUGH RIVER

HUFF, Indiana, PA

Built 1981 Load: 52.6 t ADT: 1,698

SR3009

Fair

Over: AULTMANS RUN

NEWPORT RD NO.3, Indiana, PA

Built 1951 Load: 52.6 t ADT: 839

SR0899

Fair

Over: CLARION RIVER

CLARINGTON, Jefferson, PA

Built 1963 Load: 52.6 t ADT: 1,483

SR 333-PA 333

Fair

Over: JUNIATA R/NORFOLK & S

THOMPSONTOWN STATION, Juniata, PA

Built 1994 Load: 52.6 t ADT: 459

T-475 MEISER RD

Fair

Over: COCOLAMUS CREEK

.1 MI. WEST OF 235, Juniata, PA

Built 1950 Load: 52.6 t ADT: 50

SR 0081 I-81 NB

Fair

Over: SO BR TUNKHANNOCK CREEK

SCOTT TWP 400 S TR 107, Lackawanna, PA

Built 1961 Load: 52.6 t ADT: 10,464

SR 0107 TR 107

Fair

Over: SOUTH BR TUNKHANNOCK CK

SCOTT TWP .1 M E I-81, Lackawanna, PA

Built 1961 Load: 52.6 t ADT: 1,981

SR 1016 BRIDGE ST

Fair

Over: LACKAWANNA RIVER

BLAKELY&JESSUP BORO LINE, Lackawanna, PA

Built 1961 Load: 52.6 t ADT: 10,546

SR 4022 (LR 39054)

Fair

Over: TROUT CREEK

BEST STATION&CO.LINE ROAD, Lehigh, PA

Built 1958 Load: 52.6 t ADT: 1,321

S MAIN ST

Fair

Over: LEHIGH CANAL

RIVER STREET BRIDGE, Lehigh, PA

Built 1988 Load: 52.6 t ADT: 100

SR 3042 (T-457)

Fair

Over: NESCOPECK CREEK

NESCOPECK TP 2.3M W TR 93, Luzerne, PA

Built 1959 Load: 52.6 t ADT: 67

SUNSET DRIVE

Fair

Over: LITTLE NESCOPECK CREEK

BET. BUTLER & W. FOOTHILL, Luzerne, PA

Built 1957 Load: 52.6 t ADT: 130

JOHN GROSS MEM BR

Fair

Over: BOTTLE RUN

2.5 MI N OF WILLIAMSPORT, Lycoming, PA

Built 1954 Load: 52.6 t ADT: 11,767

BRIDGE 1514 T-732

Fair

Over: OVER COOLSPRING CREEK BR

SKUNK RUN FAIRVIEW TWP., Mercer, PA

Built 1991 Load: 52.6 t ADT: 147

PA 191 (LR 169)

Fair

Over: BRODHEAD CK MONROE CO RA

@ JCT. WITH PA. 447, Monroe, PA

Built 1958 Load: 52.6 t ADT: 5,921

SR 2032(LR 45011)

Fair

Over: MARSHALLS CREEK

BUTTERMILK FALLS ROAD, Monroe, PA

Built 1964 Load: 52.6 t ADT: 4,099

PA 309 BYPASS

Fair

Over: HAWS LANE

FLOURTOWN 31A10/3369J3, Montgomery, PA

Built 1960 Load: 52.6 t ADT: 61,488

Showing 10,901-10,950 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.