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

FREEPORT RD

Fair

Over: DEER CREEK

300S. INTERSECT W/TR 910, Allegheny, PA

Built 1970 Load: 29.9 t ADT: 25,363

BIRMINGHAM BRIDGE

Fair

Over: MON RIVER CSX RR

BIRMINGHAM BRIDGE, Allegheny, PA

Built 1976 Load: 29.9 t ADT: 23,605

SCHEINBACH RD

Fair

Over: LOBBS RUN

1450 S.W. OF SR 3021, Allegheny, PA

Built 1938 Load: 29.9 t ADT: 464

BABCOCK BL

Fair

Over: GIRTYS RUN

200 SOUTHEAST OF SR 4011, Allegheny, PA

Built 1998 Load: 29.9 t ADT: 12,681

WOOD ST

Fair

Over: I-376 WB (PARKWAY EAST)

120 WOOD STREET BRIDGE, Allegheny, PA

Built 1939 Load: 29.9 t ADT: 5,000

RAMP L

Fair

Over: FORBES AVE DIAMOND ST.

RP.FROM LIB.BR.TO SR579NB, Allegheny, PA

Built 1962 Load: 29.9 t ADT: 13,290

79NB RAMP TO 65 NB

Fair

Over: RAMP A1

1016 RAMP B2 OVER 02123, Allegheny, PA

Built 1975 Load: 29.9 t ADT: 2,115

RAMP D

Fair

Over: SR 0376 EB WB

CARNEGIE INTERCHANGE, Allegheny, PA

Built 1952 Load: 29.9 t ADT: 5,432

8065 RAMP E RD

Fair

Over: I 376 RAMP V & 2ND AVE

Birmingham Bridge, Allegheny, PA

Built 1976 Load: 29.9 t ADT: 2,078

RAMP F

Fair

Over: LOCAL STREETS

300 S. OF MCKEES.-DUQ.BR, Allegheny, PA

Built 1972 Load: 29.9 t ADT: 3,835

SR0422 EB&WB

Fair

Over: TRIB TO BUFFALO CREEK

WORTHINGTON NO.2, Armstrong, PA

Built 1960 Load: 29.9 t ADT: 13,596

T-620 LAUSTER RD

Fair

Over: COWANSHANNOCK CREEK

100 feet south of SR 0085, Armstrong, PA

Built 1982 Load: 29.9 t ADT: 100

I-376 WB

Fair

Over: LR04004 BRADYS RUN PK.

Bridge Run Park Bridge, Beaver, PA

Built 1971 Load: 29.9 t ADT: 10,890

OHIO RIVER BL

Fair

Over: 8TH STREET

SR 0065 OVER 8TH ST., Beaver, PA

Built 1976 Load: 29.9 t ADT: 7,698

MARKET ST

Fair

Over: MCCAUTRY RUN

EAST OF SR 551 INT., Beaver, PA

Built 1941 Load: 29.9 t ADT: 3,078

BLACKHAWK RD

Fair

Over: BRUSH RUN

OVER BRUSH RUN @ COURT RD, Beaver, PA

Built 1932 Load: 29.9 t ADT: 1,747

GRINGO CLINTON RD

Fair

Over: SR 0376 EB-WB

3/4 MI. N. ALLEG. CO.LINE, Beaver, PA

Built 1968 Load: 29.9 t ADT: 1,032

8031 RAMP C TO 65N

Fair

Over: SR 0065

8031FREEDOM RP C TO 65 NB, Beaver, PA

Built 1976 Load: 29.9 t ADT: 1,612

US 220

Fair

Over: EVITTS CREEK

2.2 MILE NORTH OF SR 3011, Bedford, PA

Built 1964 Load: 29.9 t ADT: 3,838

US 220 (NBL)

Fair

Over: T705 JUN.RIV RR GRADE

0.2 MI. SOUTH OF TURNPIKE, Bedford, PA

Built 1971 Load: 29.9 t ADT: 6,903

US 220 (SBL)

Fair

Over: T705 BR.JUN.R ABN.RAILRD

0.2 MI. SOUTH OF TURNPIKE, Bedford, PA

Built 1971 Load: 29.9 t ADT: 7,061

SR 1036

Fair

Over: RAYSTOWN BR JUNIATA RIV

0.01 MILE EAST FROM PA 26, Bedford, PA

Built 1935 Load: 29.9 t ADT: 1,172

SR 100(LR 06026)

Fair

Over: TRIB.W.SWAMP CREEK

N.OF NEW BERLINVILLE, Berks, PA

Built 1953 Load: 29.9 t ADT: 19,364

I-176 NB (LR 1011)

Fair

Over: PA 10 (LR 274)

4 MI.S.OF US422, Berks, PA

Built 1962 Load: 29.9 t ADT: 9,452

I-176 SB (LR 1011)

Fair

Over: PA 10 (LR 274)

4 MI.S.OF US422, Berks, PA

Built 1962 Load: 29.9 t ADT: 8,806

US 422(LR 149)

Fair

Over: HOSPITAL CREEK

W. PENN AVE. & GRAND BLVD, Berks, PA

Built 1947 Load: 29.9 t ADT: 15,323

SR 222

Fair

Over: SR 3422 SR 8028 NORFKSOU

WYOMISSING HILLS, Berks, PA

Built 1977 Load: 29.9 t ADT: 75,254

SR 422(LR 793)

Fair

Over: NORFOLK/SOUTHERN RR

READING BYPASS, Berks, PA

Built 1963 Load: 29.9 t ADT: 54,692

SR 2005 (LR 148)

Fair

Over: NORFOLK SOUTHERN RR

BINGAMAN ST BRIDGE, Berks, PA

Built 1920 Load: 29.9 t ADT: 19,564

HEIDELBERG A.T425

Fair

Over: ANTIETAM CREEK

HEIDELBERG AVE. BRIDGE, Berks, PA

Built 1972 Load: 29.9 t ADT: 350

AIRPORT RD.

Fair

Over: W. BR. PERKIOMEN CREEK

3 MI. NW OF BALLY, Berks, PA

Built 1975 Load: 29.9 t ADT: 236

T-851 MARBURGER RD

Fair

Over: OYSTERVILLE CREEK

EAST OF PIKEVILLE, Berks, PA

Built 1975 Load: 29.9 t ADT: 35

US 22 EBL

Fair

Over: US 22 EB & WB

2.5 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1982 Load: 29.9 t ADT: 9,228

I-99 / US 220 SBL

Fair

Over: PA 36

VILLAGE OF LAKEMONT, Blair, PA

Built 1985 Load: 29.9 t ADT: 14,956

PA 764

Fair

Over: SPENCER RUN

1.5 MI.N.OF DUNCANSVILLE, Blair, PA

Built 1955 Load: 29.9 t ADT: 9,491

SR 4010

Fair

Over: SR 4009_NORFOLK SO. RR

ALTOONA 17TH.ST.BRIDGE, Blair, PA

Built 1973 Load: 29.9 t ADT: 17,707

PINE AVENUE

Fair

Over: MILL RUN

PINE AVE AT 31ST STREET, Blair, PA

Built 1993 Load: 29.9 t ADT: 1,546

SR 1033

Fair

Over: LANING CREEK

1.5 MI.SE OF BLACK, Bradford, PA

Built 1966 Load: 29.9 t ADT: 98

SR 1040

Fair

Over: PRINCE HOLLOW RUN

2 MI. WEST OF AURORA, Bradford, PA

Built 1950 Load: 29.9 t ADT: 290

SR 4019

Fair

Over: TRIB TO SUGAR CREEK

.2 MI N. OF SYLVANIA BORO, Bradford, PA

Built 1934 Load: 29.9 t ADT: 772

T-615 (CO.BR.#29)

Fair

Over: LEONARDS CREEK

2.7 MI NE OF TROY BORO, Bradford, PA

Built 1972 Load: 29.9 t ADT: 100

T-430 (TWP.BR# 2)

Fair

Over: SUGAR RUN

0.8 MI. EAST OF NEW ERA, Bradford, PA

Built 1940 Load: 29.9 t ADT: 50

BRISTOL PIKE

Fair

Over: WOODHAVEN ROAD

ANDALUSIA TWP. 45F03, Bucks, PA

Built 1962 Load: 29.9 t ADT: 13,410

RIVER ROAD

Fair

Over: TRIB DELAWARE RIVER

NORTH OF YARDLEY 33C09, Bucks, PA

Built 1928 Load: 29.9 t ADT: 4,200

INTERSTATE 95 (NB)

Fair

Over: MAPLE AVENUE (T454)

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

Built 1964 Load: 29.9 t ADT: 41,690

STREET ROAD

Fair

Over: INTERSTATE 95

3MI.N.PHILA.LINE 45K01, Bucks, PA

Built 1964 Load: 29.9 t ADT: 25,827

DOYLESTWN BYPAS NB

Fair

Over: LR 1068 (611 BY-PASS)

611 BY-PASS 28K02, Bucks, PA

Built 1973 Load: 29.9 t ADT: 8,547

DOYLESTWN BYPAS SB

Fair

Over: 611 BY-PASS (LR1068)

611 BY-PASS 28K02, Bucks, PA

Built 1973 Load: 29.9 t ADT: 9,175

HELLERTOWN STREET

Fair

Over: BRANCH BEAVER RUN

2MI.TO LR 09085 08A13, Bucks, PA

Built 1940 Load: 29.9 t ADT: 6,540

SELLERSVILLE BYPAS

Fair

Over: FORREST ROAD

2MI.S.BETHLEHEM PK.14A12, Bucks, PA

Built 1967 Load: 29.9 t ADT: 44,227

Showing 2,901-2,950 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.