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

PA 248 (LR163)

Fair

Over: NORFOLK&SOUTHERN RR

BOWMANSTOWN BORO LINE, Carbon, PA

Built 1962 Load: 46.3 t ADT: 18,532

PA 895

Fair

Over: LEHIGH RIVER

BOWMANSTOWN BORO LINE, Carbon, PA

Built 1986 Load: 46.3 t ADT: 3,329

SR 80-I 80

Fair

Over: SR 1002

4 MI W EXIT 158, Centre, PA

Built 1967 Load: 46.3 t ADT: 7,159

SR 80-I 80

Fair

Over: SR 1002

4 MI W EXIT 158, Centre, PA

Built 1967 Load: 46.3 t ADT: 8,982

SR 144-PA 144

Fair

Over: IRISH HOLLOW

3 MI S BELLEFONTE, Centre, PA

Built 1918 Load: 46.3 t ADT: 2,074

SR 350-PA 350

Fair

Over: WOLF RUN

MT PLEASANT, Centre, PA

Built 1985 Load: 46.3 t ADT: 4,968

T-520 QUARRY ROAD

Fair

Over: PINE CREEK

650 FT NORTH INT SR 2018, Centre, PA

Built 1989 Load: 46.3 t ADT: 35

T-512 SIG-MIL PIKE

Fair

Over: PENNS CREEK

20 FT SOUTH INT SR 1012, Centre, PA

Built 1990 Load: 46.3 t ADT: 50

T-384 EPPLY-WHITE

Fair

Over: LOGAN BRANCH

100 FT WEST OF SR 144, Centre, PA

Built 1972 Load: 46.3 t ADT: 350

US 1 BY-PASS

Fair

Over: MD.BR.WHITE CLAY CREEK

NEAR JENNERSVILLE 45F7, Chester, PA

Built 1967 Load: 46.3 t ADT: 24,365

EXTON BYPASS(EB)

Fair

Over: POTTSTOWN PIKE

S RTE 100/30 21J12, Chester, PA

Built 1995 Load: 46.3 t ADT: 22,730

POTTSTOWN PIKE

Fair

Over: TAYLOR RUN

NEAR WEST CHESTER 31K8, Chester, PA

Built 1953 Load: 46.3 t ADT: 15,691

HEPHZIBAH HILL RD.

Fair

Over: DENNIS RUN

.6M.N.STRASBURG RD. 29B9, Chester, PA

Built 1989 Load: 46.3 t ADT: 910

COPELAND SCHOOL RD

Fair

Over: BROAD RUN

EAST BRADFORD TWP. 31E6, Chester, PA

Built 1975 Load: 46.3 t ADT: 2,122

EDGES MILL ROAD

Fair

Over: BEAVER CREEK

.8 MI. WEST OF 322 30A1, Chester, PA

Built 1916 Load: 46.3 t ADT: 1,841

RAMP EB

Fair

Over: RAMP Q;RAMP R

30/202 INTERCHNG 22D10, Chester, PA

Built 1995 Load: 46.3 t ADT: 17,332

SR0068 EB&WB

Fair

Over: SR0080 EB&WB

CLARION OAKS, Clarion, PA

Built 1966 Load: 46.3 t ADT: 9,346

SR0080 WB

Fair

Over: SR0478 ST PETERSBURG RD

ST.PETERSBURG RD WB, Clarion, PA

Built 1966 Load: 46.3 t ADT: 10,140

SR2011

Fair

Over: LICKING CREEK

CURLLSVILLE NO.1, Clarion, PA

Built 1989 Load: 46.3 t ADT: 314

T-910 COMMUNITY

Fair

Over: MILL CREEK

1.2 mi N int w/ SR 208, Clarion, PA

Built 1993 Load: 46.3 t ADT: 250

SR 253-PA 253

Fair

Over: RAIL/TRAIL (HOUTZDALE)

RAMEY BORO, Clearfield, PA

Built 1984 Load: 46.3 t ADT: 1,732

T507 104th CAVALRY

Fair

Over: MONTGOMERY CREEK

400 FT NW OF SR 1002, Clearfield, PA

Built 1974 Load: 46.3 t ADT: 45

ON TSR 425

Fair

Over: RAUCHTOWN CREEK

RAUCHTOWN, Clinton, PA

Built 1924 Load: 46.3 t ADT: 322

SR 79 NB/SB

Fair

Over: OVER ROCK CREEK

GREENWOOD TOWNSHIP, Crawford, PA

Built 1965 Load: 46.3 t ADT: 12,950

SR 79 NB

Fair

Over: OVER T-871 HECKER ROAD

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1968 Load: 46.3 t ADT: 7,485

SR 79 SB

Fair

Over: OVER T-871 HECKER ROAD

CUSSEWAGO TOWNSHIP, Crawford, PA

Built 1968 Load: 46.3 t ADT: 7,030

SR 4004 DCKSNBRG.R

Fair

Over: OVER CONNEAUT CREEK

SUMMERHILL TOWNSHIP, Crawford, PA

Built 1953 Load: 46.3 t ADT: 452

I-81 NB; SR 0081

Fair

Over: Middlesex OLD SR 1005

0.6 MI.S. OF US 11, Cumberland, PA

Built 1963 Load: 46.3 t ADT: 27,884

I-81 SB; SR 0081

Fair

Over: SEARS RUN

0.8 MI.W. L.R. 569, Cumberland, PA

Built 1973 Load: 46.3 t ADT: 31,342

SR 1013

Fair

Over: SEARS RUN

.2 MI.N. I-81, Cumberland, PA

Built 1973 Load: 46.3 t ADT: 5,064

2010 Winding Hill

Fair

Over: 15

0.2 MI SOUTH OF PA TPK, Cumberland, PA

Built 1995 Load: 46.3 t ADT: 12,473

US 22; SR 0022

Fair

Over: BEAVER CREEK

L.PAXTON-W.HANOVER TWP, Dauphin, PA

Built 1944 Load: 46.3 t ADT: 15,829

US 22; SR 0022

Fair

Over: TRIB.MANADA CREEK

1 MI S MANADA, Dauphin, PA

Built 1944 Load: 46.3 t ADT: 7,565

US 22; SR 0022

Fair

Over: BOW CREEK

GRANTVILLE, Dauphin, PA

Built 1944 Load: 46.3 t ADT: 7,890

I-81; SR 0081

Fair

Over: TRIB PAXTON CREEK

2.5 MI.S.W. LINGLESTOWN, Dauphin, PA

Built 1969 Load: 46.3 t ADT: 69,634

I-81; SR 0081

Fair

Over: TRIB TO BEAVER CREEK

1 MI. S.E. LINGLESTOWN, Dauphin, PA

Built 1969 Load: 46.3 t ADT: 55,260

I-81 SB; SR 0081

Fair

Over: T-561; BLUE RIDGE RD

1.5 MI. E. OF LINGLESTOWN, Dauphin, PA

Built 1969 Load: 46.3 t ADT: 27,246

I-81;SR 0081

Fair

Over: Walnut Run

Shellsville, Dauphin, PA

Built 1967 Load: 46.3 t ADT: 50,539

I-81; SR 0081

Fair

Over: BOW CREEK

GRANTVILLE, Dauphin, PA

Built 1968 Load: 46.3 t ADT: 55,216

SR 3001

Fair

Over: LAUREL RUN

1 MI. N. OF HIGHSPIRE, Dauphin, PA

Built 1950 Load: 46.3 t ADT: 9,321

SR 3007

Fair

Over: SPRING CREEK & BIKE PATH

19TH ST CITY OF HBG, Dauphin, PA

Built 1990 Load: 46.3 t ADT: 8,804

SR 3010 WB

Fair

Over: I-83; SR 0083

SWATARA TOWNSHIP, Dauphin, PA

Built 1961 Load: 46.3 t ADT: 6,070

SR 3017

Fair

Over: TRIB PAXTON CREEK

2 MI. N. OF PROGRESS, Dauphin, PA

Built 1959 Load: 46.3 t ADT: 13,222

SR 3032 AIRPORT CN

Fair

Over: I-76; SR 9076

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 Load: 46.3 t ADT: 15,155

FIDDLERS ELBOW RD

Fair

Over: SWATARA CREEK

1 SW HUMMELSTWN/DERRY, Dauphin, PA

Built 1973 Load: 46.3 t ADT: 350

CLIFF ROAD

Fair

Over: MANADA CREEK

1.8NE I-81/PA39/MANADA CR, Dauphin, PA

Built 1973 Load: 46.3 t ADT: 275

KONICK ROAD T356

Fair

Over: POWELL CREEK

2.2S HALIFAX/AARON/POWELL, Dauphin, PA

Built 1986 Load: 46.3 t ADT: 75

GERALDINE DR. T302

Fair

Over: TRIB. PAXTON CREEK

1.5 SW LNGLSTN/TR PAX CR, Dauphin, PA

Built 1960 Load: 46.3 t ADT: 110

SHANOIS ST.

Fair

Over: PAXTON CREEK

PAXTON CR/SHANOIS ST/HBG, Dauphin, PA

Built 1919 Load: 46.3 t ADT: 50

ANN ST.

Fair

Over: AMTRAK/NSRC

ANN ST./AMTRAK&NSX, Dauphin, PA

Built 1996 Load: 46.3 t ADT: 4,077

Showing 9,701-9,750 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.