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

SR 27 GRAND STREET

Good

Over: OVER BROKENSTRAW CREEK

PITTSFIELD TOWNSHIP, Warren, PA

Built 1996 Load: 40.8 t ADT: 1,938

WASHINGTON AVE

Good

Over: ROBBS RUN

WASHINGTON AVENUE BRIDGE, Washington, PA

Built 1992 Load: 40.8 t ADT: 700

SR 3018 ST TIKHONS

Good

Over: TRIB TO MIDDLE CREEK

S CANAAN TWP 1 M N TR 296, Wayne, PA

Built 1992 Load: 40.8 t ADT: 710

SR 1021

Good

Over: COALPIT RUN

LIGONIER TOWNSHIP, Westmoreland, PA

Built 1951 Load: 40.8 t ADT: 240

OLD WILL PENN HIGH

Good

Over: HAYMAKER RUN

NEAR ALLEGHENY CNTY LINE, Westmoreland, PA

Built 1995 Load: 40.8 t ADT: 8,264

PA 177; Wyndamere

Good

Over: I-83; SR 0083

LEWISBERRY EXIT 15 & I-83, York, PA

Built 1959 Load: 40.8 t ADT: 8,084

SR 4014

Good

Over: DOE RUN

1 MI.S.S.W. OF WELLSVILLE, York, PA

Built 1933 Load: 40.8 t ADT: 664

INTERSTATE 95 (SB)

Good

Over: AMTRAK

NR.ASHBURNER STR. 3482K04, Philadelphia, PA

Built 1965 Load: 40.8 t ADT: 83,509

School House Lane

Good

Over: SEPTA (Chestnut Hill W.)

E of Morris Street 17D11, Philadelphia, PA

Built 1883 Load: 40.8 t ADT: 6,500

RAMP W

Good

Over: I-95(NB);ACCESS ROAD

SEPTA PARK/RIDE 45G03, Bucks, PA

Built 1997 Load: 40.8 t ADT: 77

SR 518 LONGVIEW RD

Good

Over: OVER BOBBY RUN

CITY OF HERMITAGE, Mercer, PA

Built 1997 Load: 40.8 t ADT: 5,955

SR 4017 WARNER RD

Good

Over: OVER B.&L.E. RAILROAD

SUGAR GROVE TOWNSHIP, Mercer, PA

Built 1997 Load: 40.8 t ADT: 1,428

SR 90 WB

Good

Over: OVER T-558 OLD FRENCH RD

SUMMIT TOWNSHIP, Erie, PA

Built 1996 Load: 40.8 t ADT: 19,632

SR 62 OIL CITY RD.

Good

Over: OVER HEMLOCK CREEK

PRESIDENT TOWNSHIP, Venango, PA

Built 1997 Load: 40.8 t ADT: 969

SR 1015 OLD RUSSEL

Good

Over: OVER STORE HOUSE RUN

PINE GROVE TOWNSHIP, Warren, PA

Built 1997 Load: 40.8 t ADT: 1,095

SR 227 CHERRY RUN

Good

Over: OVER CHERRY RUN

ROUSEVILLE BOROUGH, Venango, PA

Built 1997 Load: 40.8 t ADT: 1,442

SR 18 MAIN STREET

Good

Over: OVER SHENANGO RIVER

GREENVILLE BOROUGH, Mercer, PA

Built 1997 Load: 40.8 t ADT: 10,714

SR 2055

Good

Over: MARTINS CREEK

HARFORD TWP .1 M W TR 11, Susquehanna, PA

Built 1997 Load: 40.8 t ADT: 1,227

SR 3007 COBHAM STA

Good

Over: OVER ANDREWS RUN

PITTSFIELD TOWNSHIP, Warren, PA

Built 1998 Load: 40.8 t ADT: 557

SR 198 FOSTER ROAD

Good

Over: OVER CONNEAUT CREEK

CONNEAUTVILLE BOROUGH, Crawford, PA

Built 1998 Load: 40.8 t ADT: 520

SR 79 SB

Good

Over: OVER SR 3006 6N

WASHINGTON TOWNSHIP, Erie, PA

Built 1998 Load: 40.8 t ADT: 8,758

SR0286

Good

Over: CUSH CREEK

HOOVERHURST NO.1, Indiana, PA

Built 1998 Load: 40.8 t ADT: 1,161

SR 89 RESERVOIR RD

Good

Over: OVER FIVE MILE CREEK

SPARTA TOWNSHIP, Crawford, PA

Built 1998 Load: 40.8 t ADT: 1,129

SR 89 CUSSEWAGO RD

Good

Over: OVER OIL CREEK EAST BR

SPARTA TOWNSHIP, Crawford, PA

Built 1998 Load: 40.8 t ADT: 1,129

RAMP K(SR 8042)

Good

Over: US 222

RAMP K OVER US 222, Berks, PA

Built 1998 Load: 40.8 t ADT: 8,546

SR 322-US 322

Good

Over: SR 655-PA 655

REEDSVILLE, Mifflin, PA

Built 1998 Load: 40.8 t ADT: 11,712

SR 3008 CRANE ROAD

Good

Over: OVER SHENANGO CREEK

WASHINGTON TOWNSHIP, Erie, PA

Built 1998 Load: 40.8 t ADT: 2,117

SR 1045

Good

Over: CHARTIERS CREEK

S. TRABENE & CHARTIERS TW, Washington, PA

Built 1998 Load: 40.8 t ADT: 3,519

PA 641; SR 0641

Good

Over: MT. ROCK SPRING CREEK

.3 MI. E. OF L.R. 21004, Cumberland, PA

Built 1998 Load: 40.8 t ADT: 5,029

TOWNSHIP RD. 345

Good

Over: PENN. FORK OF FISH CREEK

WEST OF DEEP VALLEY, Greene, PA

Built 1999 Load: 40.8 t ADT: 36

SR 3004

Good

Over: TRIB. MARSH CREEK

1.5 MI S. OF GREENMOUNT, Adams, PA

Built 1998 Load: 40.8 t ADT: 155

RAMP J(SR8042)

Good

Over: US 222

RAMP J OVER US 222, Berks, PA

Built 1998 Load: 40.8 t ADT: 12,126

SR 2027 NEWTONTOWN

Good

Over: OVER OIL CREEK

TROY TOWNSHIP, Crawford, PA

Built 1999 Load: 40.8 t ADT: 130

SR 430 STATION RD

Good

Over: OVER SIX MILE CREEK

HARBOR CREEK TOWNSHIP, Erie, PA

Built 1999 Load: 40.8 t ADT: 1,536

SR 8024 - RAMP

Good

Over: I-81 I-84 RAMPS

DUNMORE BORO OVER I-84&81, Lackawanna, PA

Built 1999 Load: 40.8 t ADT: 7,495

SR 3018 BUCKEYE DR

Good

Over: OVER MCCULLOUGH RUN

SOUTH PYMATUNING TOWNSHIP, Mercer, PA

Built 1999 Load: 40.8 t ADT: 2,356

SR 3006 PLUM ST.

Good

Over: OVER CONNEAUTTEE CREEK

EDINBORO BOROUGH, Erie, PA

Built 1999 Load: 40.8 t ADT: 9,442

SR 3013 ATLANTIC R

Good

Over: OVER MCMILLEN HOLLOW RUN

EAST FALLOWFIELD TOWNSHIP, Crawford, PA

Built 1999 Load: 40.8 t ADT: 520

SR 79 NB

Good

Over: OVER SR 3006 6N

WASHINGTON TOWNSHIP, Erie, PA

Built 1999 Load: 40.8 t ADT: 9,091

RIDGE RD. T-563

Good

Over: ARMSTRONG CREEK

.6E HLFX/URICH SCH/ARMSTR, Dauphin, PA

Built 1998 Load: 40.8 t ADT: 150

SR 2011

Good

Over: OVER SUGAR RUN

4 MILE EAST OF NEW ERA, Bradford, PA

Built 2000 Load: 40.8 t ADT: 538

SR2025

Good

Over: GARRETTS RUN

GARRETTS RUN AREA, Armstrong, PA

Built 2000 Load: 40.8 t ADT: 549

T-342 (CO.BR.#5)

Good

Over: SCHRADER CREEK

1.7 S BARCLAY;GM. LAND#12, Bradford, PA

Built 2000 Load: 40.8 t ADT: 50

SR 1001 LK.PLSNT.R

Good

Over: OVER LEBOEUF CREEK E.BR.

GREEN TOWNSHIP, Erie, PA

Built 2000 Load: 40.8 t ADT: 1,761

SR 3022 E.MAIN ST.

Good

Over: OVER ALLGHNY.& EASTRN.RR

BROKENSTRAW TOWNSHIP, Warren, PA

Built 2000 Load: 40.8 t ADT: 1,353

SR 2022 N.FRANKLIN

Good

Over: OVER LITTLE SUGAR CREEK

COCHRANTON BOROUGH, Crawford, PA

Built 2000 Load: 40.8 t ADT: 3,414

SR03013 MAIN ST.

Good

Over: OVER CONNEAUT CREEK

ALBION BOROUGH, Erie, PA

Built 2000 Load: 40.8 t ADT: 1,645

SR 5 WEST LAKE RD.

Good

Over: OVER RACCOON CREEK

SPRINGFIELD TOWNSHIP, Erie, PA

Built 2000 Load: 40.8 t ADT: 709

BRIDGE 2629 T-944

Good

Over: OVER PINE RUN

UBER ROAD FINDLEY TWP., Mercer, PA

Built 2000 Load: 40.8 t ADT: 38

PA 248(LR 163)

Good

Over: AQUASHICOLA CREEK

.25 MI.N.OF LEHIGH GAP, Carbon, PA

Built 2000 Load: 40.8 t ADT: 23,671

Showing 16,601-16,650 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.