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

BROWNSVILL-LIBR RD

Fair

Over: PINEY FORK CREEK

PF06 PINEY FORK NO. 6, Allegheny, PA

Built 1914 Load: 26.3 t ADT: 8,338

BALDWIN ST

Fair

Over: MC LAUGHLIN RUN

ML06 MCLAUGHLIN RUN # 6, Allegheny, PA

Built 1935 Load: 26.3 t ADT: 3,155

WOODMERE AV

Fair

Over: CHARTIERS CREEK

CC03 CHARTIERS CRK # 3, Allegheny, PA

Built 1900 Load: 26.3 t ADT: 1,642

MARY ST

Fair

Over: PLUM CREEK

466102 MARY ST-PLUM BORO, Allegheny, PA

Built 1930 Load: 26.3 t ADT: 150

RAMP E

Fair

Over: SR 50 & JANE STREET

CARNEGIE INTERCHANGE, Allegheny, PA

Built 1952 Load: 26.3 t ADT: 4,075

RAMP H RD

Fair

Over: RAMPS C K & D

Fort Duquesne Bridge, Allegheny, PA

Built 1968 Load: 26.3 t ADT: 1,654

RAMP F

Fair

Over: N/S RR CHATEAU CALIF.

SR 65 Marshall Ave. Inter, Allegheny, PA

Built 1971 Load: 26.3 t ADT: 852

RAMP W

Fair

Over: 1021 RP.B & SCOTLAND AVE

NEAR HEINZ FIELD, Allegheny, PA

Built 1986 Load: 26.3 t ADT: 10,425

SR0268 (RAMPS A&B)

Fair

Over: SR0422 EB&WB

RTE 268 RAMPS, Armstrong, PA

Built 1970 Load: 26.3 t ADT: 11,591

SR1018

Fair

Over: GLADE RUN

BORO OF DAYTON, Armstrong, PA

Built 1989 Load: 26.3 t ADT: 927

BEAVER VALLEY EXPR

Fair

Over: RELOCATED RACCOON CREEK

1MI.N.OF ALIQUIPPA INTER., Beaver, PA

Built 1969 Load: 26.3 t ADT: 13,201

GROUP CAMP ROAD

Fair

Over: TRAVERSE CREEK

1 MI NW OF SR 18, Beaver, PA

Built 1992 Load: 26.3 t ADT: 125

SR 1012

Fair

Over: JOHNS BR RAYSTWN BR JUN

1.5 MI.E.OF TATESVILLE, Bedford, PA

Built 1937 Load: 26.3 t ADT: 366

PA 143(LR 285)

Fair

Over: UNNAMED TRIB MAIDEN CRK

@ PA.737 & PA. 143 INT., Berks, PA

Built 1930 Load: 26.3 t ADT: 2,249

I-176 (LR 1011) NB

Fair

Over: PA 724(LR 147)

EXIT 10(3) PA. 724, Berks, PA

Built 1962 Load: 26.3 t ADT: 8,313

I-176 (LR 1011) SB

Fair

Over: PA 724(LR 147)

EXIT 10(3) PA. 724, Berks, PA

Built 1962 Load: 26.3 t ADT: 8,701

SR 422(LR 793)

Fair

Over: SCHUY.RIVER SERVICE RD.

READING BYPASS, Berks, PA

Built 1963 Load: 26.3 t ADT: 54,692

PA 625 (LR 518)

Fair

Over: ANGELICA CREEK

NOLDE FOREST STATE PARK, Berks, PA

Built 1927 Load: 26.3 t ADT: 3,378

LR518 (PA625)

Fair

Over: ANGELICA CREEK

NEW HOLLAND ROAD, Berks, PA

Built 1927 Load: 26.3 t ADT: 3,378

SR 2011 (11TH ST.)

Fair

Over: T-413(SPRING VALLEY RD.)

11TH ST.OVER T-413, Berks, PA

Built 1978 Load: 26.3 t ADT: 9,406

SR 2032(LR06098SP)

Fair

Over: BRANCH OF W.SWAMP CREEK

BECHTELSVILLE E.CHESTNUT, Berks, PA

Built 1941 Load: 26.3 t ADT: 1,277

SR 3008(LR 06149)

Fair

Over: PLUM CREEK

PLUM CREEK BRIDGE, Berks, PA

Built 1931 Load: 26.3 t ADT: 2,387

MORGAN WAY

Fair

Over: CONESTOGA CREEK

MORGANTOWN, Berks, PA

Built 1932 Load: 26.3 t ADT: 980

BEAVER CREEK ROAD

Fair

Over: BIEBER CREEK

NORTH OF FORGEDALE ROAD, Berks, PA

Built 1965 Load: 26.3 t ADT: 100

MAIN STREET

Fair

Over: PIGEON CREEK

SOUTH OF SR 4025, Berks, PA

Built 1940 Load: 26.3 t ADT: 1,000

US 22 EBL

Fair

Over: T-416 CARSON VALLEY ROAD

2 MI NW OF DUNCANSVILLE, Blair, PA

Built 1982 Load: 26.3 t ADT: 9,255

T405 River Road

Fair

Over: FRANKSTOWN BR.JUNIATA R.

1 MI.E.OF HOLLIDAYSBURG, Blair, PA

Built 1964 Load: 26.3 t ADT: 739

T414 LARKE ROAD

Fair

Over: CLOVER CREEK

VILLAGE OF LARKE, Blair, PA

Built 1940 Load: 26.3 t ADT: 359

SR 187

Fair

Over: WYSOX CREEK

VILLAGE OF NORTH ORWELL, Bradford, PA

Built 1920 Load: 26.3 t ADT: 1,168

SR 4027

Fair

Over: BUCKS CREEK

0.3 MI N OF CHECKERVILLE, Bradford, PA

Built 1938 Load: 26.3 t ADT: 221

SOUTH MAIN STREET

Fair

Over: AQUETONG CREEK

1.1MI.TO LR 155 25H02, Bucks, PA

Built 1959 Load: 26.3 t ADT: 6,360

INTERSTATE 95 (SB)

Fair

Over: MAPLE AVENUE (T454)

1MI.N.EDDINGTON 42B12, Bucks, PA

Built 1964 Load: 26.3 t ADT: 41,939

SELLERSVILLE BYPAS

Fair

Over: CAT HILL ROAD

1.2 MI TO LR386 20B04, Bucks, PA

Built 1967 Load: 26.3 t ADT: 43,031

MOUNTAIN VIEW ROAD

Fair

Over: TOHICKON CREEK

NOCKAMIXON STATE 15A02, Bucks, PA

Built 1972 Load: 26.3 t ADT: 5,093

DOLINGTON ROAD

Fair

Over: INTERSTATE 295

1MI.S.TAYLORSVILLE 32J10, Bucks, PA

Built 1967 Load: 26.3 t ADT: 2,624

DIAMOND STREET

Fair

Over: PLEASANT SPRINGS CREEK

AT SOUDERTON RD. 20K07, Bucks, PA

Built 1968 Load: 26.3 t ADT: 3,845

BLOOMING GLEN ROAD

Fair

Over: EAST BR. PERKIOMEN CREEK

MOODS COVERED BRG.2808G10, Bucks, PA

Built 1874 Load: 26.3 t ADT: 1,592

WALNUT LANE

Fair

Over: SCHMOUTZ CREEK

1.8 MI E OF SR663 2806-D4, Bucks, PA

Built 1955 Load: 26.3 t ADT: 75

US 22

Fair

Over: SR 2014

0.5 MILE WEST OF TR 164, Cambria, PA

Built 1981 Load: 26.3 t ADT: 28,818

PA 36

Fair

Over: LITTLE BRUBAKER RUN

1.4 MI.S.OF CLEAR CO.LINE, Cambria, PA

Built 1933 Load: 26.3 t ADT: 1,508

SR 2009

Fair

Over: NORFOLK SOUTHERN

SUMMERHILL BORO., Cambria, PA

Built 1984 Load: 26.3 t ADT: 2,110

GREEN VALLEY ST

Fair

Over: SAMS RUN

LORAIN GREEN VALLEY ST, Cambria, PA

Built 1978 Load: 26.3 t ADT: 513

SR 120-PA 120

Fair

Over: DRIFTWOOD BRANCH

EMPORIUM BORO, Cameron, PA

Built 1930 Load: 26.3 t ADT: 3,036

SR 4004

Fair

Over: BOBBY RUN

LEWIS RUN, Cameron, PA

Built 1944 Load: 26.3 t ADT: 310

I80 WB (LR 1009)

Fair

Over: N.E.EXT.PA.TPK(I-476)

I-80 W.B. OVER I-476, Carbon, PA

Built 1965 Load: 26.3 t ADT: 8,298

US 209 (LR 163)

Fair

Over: NO/SOUT RRS. STS. CANAL

THOMAS J.MCCALL MEM.BRIDG, Carbon, PA

Built 1938 Load: 26.3 t ADT: 26,464

PA902(LR 13008)

Fair

Over: TRIB. TO MAHONING CREEK

MAHONING DRIVE, Carbon, PA

Built 1921 Load: 26.3 t ADT: 3,388

SR 144-PA 144

Fair

Over: POTTER RUN

POTTER RUN, Centre, PA

Built 1939 Load: 26.3 t ADT: 3,831

SR 322-US 322

Fair

Over: TOWNSHIP ROAD

3 MI NW PORT MATILDA, Centre, PA

Built 1971 Load: 26.3 t ADT: 4,976

T-515 CIDER PRESS

Fair

Over: SINKING CREEK

1/4 MILE FROM SR 322, Centre, PA

Built 1991 Load: 26.3 t ADT: 20

Showing 1,701-1,750 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.