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 22-US 22

Poor

Over: SR 2003 AND DOE RUN

MEXICO, Juniata, PA

Built 1972 Load: 37.2 t ADT: 7,250

PLAZA BLVD

Poor

Over: AMTRAK / NSRC

1000 FT SW OF SR 72, Lancaster, PA

Built 1970 Load: 37.2 t ADT: 3,600

TR309 CROSS VALLEY

Poor

Over: TOBY CREEK

COURTDLE BO .7M N SR 1002, Luzerne, PA

Built 1963 Load: 37.2 t ADT: 37,437

SR 0309 TR 309

Poor

Over: TOBYS CREEK

KINGSTON TWP .1M S SR1036, Luzerne, PA

Built 1928 Load: 37.2 t ADT: 31,449

SR 0309 TR 309

Poor

Over: TOBY CREEK

KINGSTON TWP 1M S SR 1014, Luzerne, PA

Built 1941 Load: 37.2 t ADT: 27,451

SR 0309 TR 309

Poor

Over: TOBY CREEK

KINGSTON TP .8M S SR 1014, Luzerne, PA

Built 1941 Load: 37.2 t ADT: 27,451

SR 62 FRANKLIN RD.

Poor

Over: OVER SPRING CREEK

COOLSPRING TOWNSHIP, Mercer, PA

Built 1948 Load: 37.2 t ADT: 3,515

SR 2013 E HOME ST

Poor

Over: MUNNELL RUN

MERCER BOROUGH, Mercer, PA

Built 1910 Load: 37.2 t ADT: 873

BRIDGE 1507 T-641

Poor

Over: OVER OTTER CREEK

MARSTELLAR RD. FAIRVIEW, Mercer, PA

Built 1960 Load: 37.2 t ADT: 277

BRIDGE 405 T-883

Poor

Over: OVER SANDY CREEK

SCOFIELD SANDY CREEK TWP, Mercer, PA

Built 1969 Load: 37.2 t ADT: 27

MOREDON ROAD

Poor

Over: PENNYPACK CREEK

1 MI SE OF SR0232 32K12, Montgomery, PA

Built 1932 Load: 37.2 t ADT: 4,653

TOOKANY CREEK PKWY

Poor

Over: TOOKANY CREEK

E of New 2nd St 3371-B10, Montgomery, PA

Built 1935 Load: 37.2 t ADT: 4,000

CHARLOTTE STREET

Poor

Over: NORFOLK SOUTHERN (HSB)

1 Mi E PA-100 3138-G1, Montgomery, PA

Built 1968 Load: 37.2 t ADT: 1,500

T-586 BREHM ROAD

Poor

Over: BENS CREEK

1.5 MI.SW.OF THOMAS MILLS, Somerset, PA

Built 1895 Load: 37.2 t ADT: 50

T-361 GAMELAND RD

Poor

Over: WILLS CREEK

1 MI.S.OF MANCE, Somerset, PA

Built 1986 Load: 37.2 t ADT: 51

SR 208 EMLENTON RD

Poor

Over: OVER LITTLE SCRUBGRASS

SCRUBGRASS TOWNSHIP, Venango, PA

Built 1960 Load: 37.2 t ADT: 1,174

T-589 HARPER ROAD

Poor

Over: OVER CHERRYTREE RUN

EAST SIDE OF KANEVILLE, Venango, PA

Built 1900 Load: 37.2 t ADT: 100

SR 2022

Poor

Over: BARRS RUN

WEST BETHLEHEM TOWNSHIP, Washington, PA

Built 1914 Load: 37.2 t ADT: 132

T-565 Fairground

Poor

Over: Sewickley Creek

BTW SR981 & T830, Westmoreland, PA

Built 1936 Load: 37.2 t ADT: 100

MOUNT TOP ROAD

Poor

Over: TRIB N BR BERMUDIAN CRK

0.7 MI E OF SR 194, York, PA

Built 1967 Load: 37.2 t ADT: 191

MARKET STREET

Poor

Over: SCHUYLKILL RIVER

CENTER CITY PHILA. 3590A8, Philadelphia, PA

Built 1932 Load: 37.2 t ADT: 14,101

DREIBELBIS MILL RD

Poor

Over: TRIB TO PIGEON CREEK

INTERSECT OF ALLENDALE RD, Berks, PA

Built 1960 Load: 37.2 t ADT: 400

SR 1029 (LR 06158)

Poor

Over: LITTLE SACONY CREEK

SMOKETOWN ROAD, Berks, PA

Built 1938 Load: 37.3 t ADT: 847

SR 3011; TWP RD

Poor

Over: SHERMANS CREEK

1 MI SOUTH OF LOYSVILLE, Perry, PA

Built 1962 Load: 37.3 t ADT: 1,222

STEEN RD

Poor

Over: CHARTIERS CRK FLOOD CHAN

102003 STEEN RD OV AQUADT, Allegheny, PA

Built 1972 Load: 38.1 t ADT: 3,215

KENMAWR AVE RMP RD

Poor

Over: FLEET STREET

MA07KN RM NAP KENMAWR AVE, Allegheny, PA

Built 1951 Load: 38.1 t ADT: 8,381

T-704 Old Mill Rd

Poor

Over: THREE SPRINGS RUN

1 MI.E.OF NEW ENTERPRISE, Bedford, PA

Built 1930 Load: 38.1 t ADT: 41

PA 10 (LR 06090)

Poor

Over: TRIB. TO CONESTOGA CREEK

MORGANTOWN & QUARRY RDS., Berks, PA

Built 1952 Load: 38.1 t ADT: 5,139

WINDING ROAD

Poor

Over: IRONSTONE CREEK

0.3 MI. SO.OF SR 2042, Berks, PA

Built 1963 Load: 38.1 t ADT: 190

BOWERS ROAD

Poor

Over: NORFOLK SO. (LINE 0342)

NE OF BERKLEY, Berks, PA

Built 1988 Load: 38.1 t ADT: 200

8TH AVENUE

Poor

Over: LAUREL RUN CREEK

8TH AVE AND COLUMBIA AVE., Berks, PA

Built 1935 Load: 38.1 t ADT: 200

TR-376 (TWP.BR.#1

Poor

Over: DURELL CREEK

1.2 MI SOUTH OF DURELL, Bradford, PA

Built 1972 Load: 38.1 t ADT: 30

NEW BRITAIN ROAD

Poor

Over: DOYLESTOWN BYPASS

SOUTH DOYLESTOWN 29A02, Bucks, PA

Built 1973 Load: 38.1 t ADT: 1,798

PA TURNPIKE(I-276)

Poor

Over: BRISTOL IND.RR:DB-252

EAST OF DELAWARE VAL INTG, Bucks, PA

Built 1954 Load: 38.1 t ADT: 46,280

SR3007

Poor

Over: CONNOQUENESSING CREEK

RENFREW, Butler, PA

Built 1970 Load: 38.1 t ADT: 5,380

T-599 LICK RUN RD

Poor

Over: LICK RUN

1.1 MI EAST OF SR 1006, Clearfield, PA

Built 1905 Load: 38.1 t ADT: 60

T-335 SPLASH DAM R

Poor

Over: CURRY RUN

1.4 MILES NE OF T420, Clearfield, PA

Built 1905 Load: 38.1 t ADT: 15

SR 2019 LEBOEUF RD

Poor

Over: OVER SUGAR CREEK EAST BR

TROY TOWNSHIP, Crawford, PA

Built 1962 Load: 38.1 t ADT: 30

SR 4002 LUEXUMBURG

Poor

Over: TRIB TO DEEP CREEK

1 MI S PILLOW, Dauphin, PA

Built 1991 Load: 38.1 t ADT: 2,032

SR 711 CRAWFORD AV

Poor

Over: YOUGHIOGHENY SR1037 CSXT

Crawford Avenue Bridge, Fayette, PA

Built 1959 Load: 38.1 t ADT: 12,362

T-502 OLD ROUTE 51

Poor

Over: JENNINGS RUN

SOUTH OF WALTERSBURG, Fayette, PA

Built 1928 Load: 38.1 t ADT: 500

PA 928

Poor

Over: ESTHER RUN

0.5 MI S BIG COVE TANNERY, Fulton, PA

Built 1932 Load: 38.1 t ADT: 328

SR 2019

Poor

Over: LICKING CREEK

0.1 MILE SOUTH OF PA 103, Huntingdon, PA

Built 1930 Load: 38.1 t ADT: 361

SR2018

Poor

Over: TRIB TO BRUSH CREEK

BRUSH VALLEY NO.10, Indiana, PA

Built 1940 Load: 38.1 t ADT: 154

REESE RD

Poor

Over: TAYLOR RUN

037014 PLAINGROVE TWP, Lawrence, PA

Built 1981 Load: 38.1 t ADT: 50

PA 343;S.PINE GRV.

Poor

Over: ELIZABETH RUN

FREDERICKSBURG, Lebanon, PA

Built 1968 Load: 38.1 t ADT: 9,090

SR 3039 VALLEY RD

Poor

Over: OVER LACKAWANNOCK CREEK

JEFFERSON TOWNSHIP, Mercer, PA

Built 1910 Load: 38.1 t ADT: 552

SPRING T586

Poor

Over: T586 OVER BEAVER CREEK

2 MI.WEST OF BEAVERTOWN, Snyder, PA

Built 1973 Load: 38.1 t ADT: 300

T524 SECHLAR ROAD

Poor

Over: US 219

1.6 MILE NORTH OF TR 281, Somerset, PA

Built 1972 Load: 38.1 t ADT: 1,094

PA TURNPIKE RP I76

Poor

Over: TRIB.COXES CREEK;B-348

SOMERSET INTERCHANGE, Somerset, PA

Built 1939 Load: 38.1 t ADT: 5,660

Showing 22,801-22,850 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.