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

COOL HOLLOW RD

Fair

Over: W BR CONCOCHEAGUE CREEK

1.3 MI NORTH OF SR 3004, Franklin, PA

Built 1967 Load: 30.8 t ADT: 250

SR 1004

Fair

Over: BIG COVE CREEK

MCCONNELLSBURG, Fulton, PA

Built 1930 Load: 30.8 t ADT: 4,203

SR 1007

Fair

Over: LICKING CREEK

0.5 MILE EAST OF ANDOVER, Fulton, PA

Built 1956 Load: 30.8 t ADT: 291

SR 3006

Fair

Over: LITTLE TONOLOWAY CREEK

0.2 MILE EAST OF SR 3007, Fulton, PA

Built 1973 Load: 30.8 t ADT: 105

TURNPIKE RAMP

Fair

Over: PA TPK (I-76)

FORT LITTLETON INTERCHGE, Fulton, PA

Built 1939 Load: 30.8 t ADT: 13,591

T-437 WOODEN BR.RD

Fair

Over: WOODEN BRIDGE CREEK

2 MI.N.OF HUSTONTOWN, Fulton, PA

Built 1989 Load: 30.8 t ADT: 50

SR 0018

Fair

Over: SOUTH FORK TENMILE CREEK

CENTER TOWNSHIP, Greene, PA

Built 1984 Load: 30.8 t ADT: 5,962

SR 2018

Fair

Over: SR 0079

WHITELEY TOWNSHIP, Greene, PA

Built 1973 Load: 30.8 t ADT: 1,410

SR 3001

Fair

Over: CRABAPPLE CREEK

RICHHILL TOWNSHIP, Greene, PA

Built 1945 Load: 30.8 t ADT: 190

SR 3005

Fair

Over: LONG RUN

RICHHILL TOWNSHIP, Greene, PA

Built 1961 Load: 30.8 t ADT: 162

SR 3006

Fair

Over: TOMS RUN

WAYNE TOWNSHIP, Greene, PA

Built 1964 Load: 30.8 t ADT: 165

PA 550

Fair

Over: LOGAN SPRING RUN

0.6 MILE NORTH OF SR 4025, Huntingdon, PA

Built 1930 Load: 30.8 t ADT: 1,787

T504 MILL CRK HOLL

Fair

Over: MILL CREEK

3.7 MILE NORTH OF TR 655, Huntingdon, PA

Built 1964 Load: 30.8 t ADT: 135

SR 1008

Fair

Over: GLOBE RUN

.25 MI.E.OF COTTAGE, Huntingdon, PA

Built 1930 Load: 30.8 t ADT: 95

SR 4015

Fair

Over: WARRIORS MARK RUN

1.5 M.W.FRANKLINVILLE, Huntingdon, PA

Built 1962 Load: 30.8 t ADT: 73

T342 SPRING CRK RD

Fair

Over: THREE SPRINGS CREEK

0.3 MI W OF POGUE, Huntingdon, PA

Built 1978 Load: 30.8 t ADT: 180

SR0259

Fair

Over: TRIB TO BRUSH CREEK

BRUSH VALLEYNO.6, Indiana, PA

Built 1967 Load: 30.8 t ADT: 362

SR0711

Fair

Over: TRIB TO CONEMAUGH RIVER

CRAMER NO.3, Indiana, PA

Built 1919 Load: 30.8 t ADT: 994

SR3019

Fair

Over: BIG RUN

NURSERY ROAD, Indiana, PA

Built 1933 Load: 30.8 t ADT: 91

SR0080 EB

Fair

Over: SR1004

SMITHTOWN NO.1, Jefferson, PA

Built 1964 Load: 30.8 t ADT: 10,437

SR 0080 WB

Fair

Over: SR1004

SMITHTOWN NO.2, Jefferson, PA

Built 1964 Load: 30.8 t ADT: 6,616

SR0219

Fair

Over: RATTLESNAKE RUN

LANES MILLS NO.1, Jefferson, PA

Built 1961 Load: 30.8 t ADT: 7,645

SR3009

Fair

Over: FOUNDRY RUN

HAMILTON NO.3, Jefferson, PA

Built 1962 Load: 30.8 t ADT: 146

SR3013

Fair

Over: MAHONING CREEK

VALIER NO.1, Jefferson, PA

Built 1960 Load: 30.8 t ADT: 488

SR 22-US 22

Fair

Over: SR 1002

1 MI NE CUBA MILLS, Juniata, PA

Built 1973 Load: 30.8 t ADT: 10,347

SR 35-PA 35

Fair

Over: LOST CREEK

OAKLAND MILLS, Juniata, PA

Built 1941 Load: 30.8 t ADT: 5,025

SR 75-PA 75

Fair

Over: FIRST ST & JUNIATA RIVER

PORT ROYAL BORO, Juniata, PA

Built 1937 Load: 30.8 t ADT: 6,300

T-360 EHRENZELLER

Fair

Over: EAST LICKING CREEK

1500 FT SE OF SR 4002, Juniata, PA

Built 1985 Load: 30.8 t ADT: 50

SR 0011 TR 11

Fair

Over: SUMMIT LAKE CREEK

S ABNGTON TWP JCT SR 4032, Lackawanna, PA

Built 1936 Load: 30.8 t ADT: 21,116

TR 11 BIRNEY AVE

Fair

Over: SR 8001 RAMP H

MOOSIC BORO OVER SR 8001, Lackawanna, PA

Built 1966 Load: 30.8 t ADT: 16,701

SR 2107 COLIERY RD

Fair

Over: SR 0081 I-81

SCRANTON CITY ROCKWELL AV, Lackawanna, PA

Built 1958 Load: 30.8 t ADT: 109

SR 0081 I-81 NB

Fair

Over: SR 0107 TR 107

BENTON TWP OVER TR 107, Lackawanna, PA

Built 1961 Load: 30.8 t ADT: 10,780

SR 0438 TR 438

Fair

Over: TRIB S BR TUNKHANNOCK CK

SCOTT TWP 550 W TR 247, Lackawanna, PA

Built 1928 Load: 30.8 t ADT: 992

SR 3031

Fair

Over: BRANCH OF SPRING BROOK

MOOSIC BORO 801 N TR 502, Lackawanna, PA

Built 1957 Load: 30.8 t ADT: 1,647

SR 4023

Fair

Over: SPILLWAY GRIFFIN RES

S ABNGTN TP .7M N SR 1027, Lackawanna, PA

Built 1941 Load: 30.8 t ADT: 841

SR 1068; Hunsicker

Fair

Over: US 222; SR 0222

2.25 MI. N. OF US 30, Lancaster, PA

Built 1969 Load: 30.8 t ADT: 927

US322;Division Hwy

Fair

Over: Trib to Conestoga River

0.5 mi.S.E. of Hinkletown, Lancaster, PA

Built 1954 Load: 30.8 t ADT: 9,874

PA 772; SR 0772

Fair

Over: COCALICO CREEK

1.0 MI.N.W. OF BROWNSTOWN, Lancaster, PA

Built 1984 Load: 30.8 t ADT: 11,901

1059 Muddy Creek

Fair

Over: RAMP EF (TURNPIKE)

TP EXIT-21 RAMP (SPUR RD), Lancaster, PA

Built 1972 Load: 30.8 t ADT: 2,144

SR 3006 River Rd.

Fair

Over: Phila Intake Canal

Muddy Run Dam, Lancaster, PA

Built 1967 Load: 30.8 t ADT: 435

LR 36012 SR 0897

Fair

Over: PA TPK (I-76)

2 MI S OF ADAMSTOWN, Lancaster, PA

Built 1950 Load: 30.8 t ADT: 6,088

BAKER ROAD (T-349)

Fair

Over: TRIB BRUBAKER RUN

0.45 MI. NORTH OF SR 4010, Lancaster, PA

Built 1977 Load: 30.8 t ADT: 415

SR 8003 RAMP O

Fair

Over: NORFOLK SOUTHERN.

0.5 MI.W. OF PA 72, Lancaster, PA

Built 1969 Load: 30.8 t ADT: 3,645

SR 422 EB

Fair

Over: SHEN R INDSTRY. ST NC

250 N.W.OF SR 0168, Lawrence, PA

Built 1972 Load: 30.8 t ADT: 6,622

BENJAMIN FRANKL HW

Fair

Over: SR 2001 BRAN OF BIG RN

1.0 MI W OF SR 0065, Lawrence, PA

Built 1971 Load: 30.8 t ADT: 6,480

OLD PITTSBURGH RD

Fair

Over: MCKEE RUN

SHENANGO TWP SHENANGO RD, Lawrence, PA

Built 1940 Load: 30.8 t ADT: 941

COVERT RD

Fair

Over: LR 1023 PA 60 N.B.

1/2 MI.N.E.OF TR 60, Lawrence, PA

Built 1973 Load: 30.8 t ADT: 2,411

PA 934; S.White Ok

Fair

Over: QUITTAPAHILLA CREEK

SOUTH END OF ANNVILLE, Lebanon, PA

Built 1954 Load: 30.8 t ADT: 8,051

PA TPK (I-76)

Fair

Over: LR280 SR 0241

SOUTH LONDONDERRY TWP, Lebanon, PA

Built 1949 Load: 30.8 t ADT: 24,423

PA TPK (I-476)

Fair

Over: T-435

UPPER MILFORD TWP EMMAUS, Lehigh, PA

Built 1955 Load: 30.8 t ADT: 44,406

Showing 3,351-3,400 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.