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 3001

Fair

Over: I-70

.1 MI.N.OF MARYLAND LINE, Fulton, PA

Built 1965 Load: 23.6 t ADT: 1,087

T404 REUNION GR RD

Fair

Over: LICKING CREEK

1.8 MI.SW.OF HARRISONVILE, Fulton, PA

Built 1983 Load: 23.6 t ADT: 46

SR 0079

Fair

Over: SR 2026

FRANKLIN TOWNSHIP, Greene, PA

Built 1971 Load: 23.6 t ADT: 10,138

T504 MILL CRK HOLL

Fair

Over: MILL CREEK

2.6 MILE NORTH OF TR 655, Huntingdon, PA

Built 1937 Load: 23.6 t ADT: 135

SR0080 EB

Fair

Over: SR4003

ALASKA EB, Jefferson, PA

Built 1962 Load: 23.6 t ADT: 12,280

SR0080 WB

Fair

Over: SR4003

ALASKA WB, Jefferson, PA

Built 1962 Load: 23.6 t ADT: 12,084

SR0080 WB

Fair

Over: MILL CREEK

SULGER WB, Jefferson, PA

Built 1962 Load: 23.6 t ADT: 10,486

SR0949

Fair

Over: WELCH RUN

WELCH RUN NO.2, Jefferson, PA

Built 1936 Load: 23.6 t ADT: 528

T-408 TRUSSELL RD.

Fair

Over: INDIANCAMP RUN

0.1 MI E OF SR3011/SR3018, Jefferson, PA

Built 1940 Load: 23.6 t ADT: 50

US 11 TR 11

Fair

Over: 8025 ROARING BR RR SER R

CTY SCRANTON SPRUCE COMPL, Lackawanna, PA

Built 1969 Load: 23.6 t ADT: 33,410

SR 0081 I-81 NB

Fair

Over: SR 0502 TR 502

MOOSIC BORO OVER TR 502, Lackawanna, PA

Built 1966 Load: 23.6 t ADT: 28,335

SR 0380 I-380 SB

Fair

Over: SR 2010

ROARING BRK TP OV SR 2010, Lackawanna, PA

Built 1975 Load: 23.6 t ADT: 12,386

PA 272; SR 0272

Fair

Over: HUBER RUN

SMITHVILLE, Lancaster, PA

Built 1971 Load: 23.6 t ADT: 8,265

1025 Farmersville

Fair

Over: US 222; SR 0222

0.25 MI.S. DIAMOND SPRING, Lancaster, PA

Built 1970 Load: 23.6 t ADT: 2,060

PA TPK (I-76)

Fair

Over: BR. MUDDY CR.

BRECKNOCK TWP, Lancaster, PA

Built 1949 Load: 23.6 t ADT: 36,390

PA TPK (I-76)

Fair

Over: SR 0625 LR 518

BRECKNOCK TWP, Lancaster, PA

Built 1949 Load: 23.6 t ADT: 33,608

T563 INDIAN RUN RD

Fair

Over: INDIAN RUN

1300 FT NW OF SR 3027, Lancaster, PA

Built 1973 Load: 23.6 t ADT: 105

US 0422 WB

Fair

Over: I-376 TOLL & RP N EB

SR 0422 WB OVER I-376, Lawrence, PA

Built 1972 Load: 23.6 t ADT: 6,190

US 422; Min st.

Fair

Over: QUITTAPAHILLA CREEK

WEST END OF ANNVILLE, Lebanon, PA

Built 1935 Load: 23.6 t ADT: 18,237

SR 1020

Fair

Over: I-78;SR 0078

0.5 W. OF FREDERICKSBURG, Lebanon, PA

Built 1969 Load: 23.6 t ADT: 1,821

BIDDLE RD..SR 4024

Fair

Over: I-81; SR 0081

3 MI.N.E. OF EXIT 85, Lebanon, PA

Built 1967 Load: 23.6 t ADT: 874

SR 309(LR781)

Fair

Over: TWP.RD.870(BROADWAY ST.)

OVER BROADWAY, Lehigh, PA

Built 1958 Load: 23.6 t ADT: 42,630

SR1018(EATON AVE.)

Fair

Over: PA 378(LR1007) RC DITCH

PA 378 UNDER EATON AVE., Lehigh, PA

Built 1967 Load: 23.6 t ADT: 10,975

SR 0011 TR 11

Fair

Over: ABRAHAMS CREEK

FORTY FRT BORO INT SR1019, Luzerne, PA

Built 1939 Load: 23.6 t ADT: 18,089

SR 3102 TWP RD 399

Fair

Over: SR 0081 I-81 NB

RICE TWP 2 M S SR 2042, Luzerne, PA

Built 1965 Load: 23.6 t ADT: 473

SR 2029 YORK AVE

Fair

Over: MILL CREEK-BR LACKA RIVE

AVOCA BORO .3 M W TR 11, Luzerne, PA

Built 1952 Load: 23.6 t ADT: 2,000

HORTOP ROAD

Fair

Over: MARSH CREEK

1500 FT SE OF SR 4016, Luzerne, PA

Built 1977 Load: 23.6 t ADT: 50

SR 44

Fair

Over: OVER RAMSEY RUN

3 MILES S OF WATERVILLE, Lycoming, PA

Built 1926 Load: 23.6 t ADT: 1,422

SR 973

Fair

Over: OVER MILL CREEK

1.5 MI E OF HEPBURNVILLE, Lycoming, PA

Built 1933 Load: 23.6 t ADT: 1,316

SR 1005

Fair

Over: OVER BEAR CREEK

VILLAGE OF BARBOURS, Lycoming, PA

Built 1962 Load: 23.6 t ADT: 331

T-397

Fair

Over: WHITE DEER HOLE CREEK

0.5 MI SSW OF ELIMSPORT, Lycoming, PA

Built 1937 Load: 23.6 t ADT: 108

T-573 TOWN LINE RD

Fair

Over: KINZUA CREEK

1/2 MI EAST OF SR 219, McKean, PA

Built 1991 Load: 23.6 t ADT: 60

SR 1014 GEORGETOWN

Fair

Over: OVER SR 79 NB/SB

DEER CREEK TOWNSHIP, Mercer, PA

Built 1967 Load: 23.6 t ADT: 1,404

BRIDGE 3101 T-355

Fair

Over: OVER SWAMP RUN BRANCH

PINCHLONG RD. PINE TWP., Mercer, PA

Built 1922 Load: 23.6 t ADT: 244

SR 22-US 22

Fair

Over: WAKEFIELD RUN

3 MI NE MCVEYTOWN, Mifflin, PA

Built 1922 Load: 23.6 t ADT: 7,589

SR 4013

Fair

Over: SR 322-PA 322

BURNHAM, Mifflin, PA

Built 1968 Load: 23.6 t ADT: 7,889

T-342

Fair

Over: KISHACOQUILLAS CREEK

1700FT S INTERT342-SR655, Mifflin, PA

Built 1983 Load: 23.6 t ADT: 100

SR 3028 (LR 45094)

Fair

Over: I-80 (LR 1002)

GOLDEN SLIPPER RD., Monroe, PA

Built 1963 Load: 23.6 t ADT: 2,962

MIDDLE CREEK RD.

Fair

Over: DOTTERS CREEK

0.3 M. FROM INT RT534, Monroe, PA

Built 1940 Load: 23.6 t ADT: 250

CEDAR HILL ROAD

Fair

Over: PARK CREEK

CEDAR HILL;HORSHAM 3145J6, Montgomery, PA

Built 2003 Load: 23.6 t ADT: 2,696

Hannah Avenue

Fair

Over: East Branch Stony Creek

500 S Twp Ln Rd 3256-B7, Montgomery, PA

Built 1980 Load: 23.6 t ADT: 1,190

SR2042 HECKTOWN RD

Fair

Over: PA 33

HECKTOWN RD.OVER PA.33, Northampton, PA

Built 1972 Load: 23.6 t ADT: 6,264

SR 2032 (LR 48020)

Fair

Over: BUSHKILL CREEK

NORTHWOOD AVE, Northampton, PA

Built 1969 Load: 23.6 t ADT: 6,354

T-639 LEWIS TWP

Fair

Over: WARRIOR RUN

LEWIS TWP, Northumberland, PA

Built 1896 Load: 23.6 t ADT: 50

T-720 CO.BR.#22

Fair

Over: LITTLE SHAMOKIN CREEK

1 MI S.OF HAMILTON, Northumberland, PA

Built 1903 Load: 23.6 t ADT: 50

PA 850; SR 0850

Fair

Over: BAKER CREEK

ALINDA, Perry, PA

Built 1929 Load: 23.6 t ADT: 3,246

SR 4003

Fair

Over: MASTHOPE CREEK

LACKAWXN TWP .5M N SR1014, Pike, PA

Built 1936 Load: 23.6 t ADT: 504

SR 6-US 6

Fair

Over: ALLEGHENY RIVER

COUDERSPORT BORO, Potter, PA

Built 1934 Load: 23.6 t ADT: 6,354

I-81 NB(LR 1005)

Fair

Over: SR 1006 (LR 53037)

1 MI.S.OF EXIT 131(37), Schuylkill, PA

Built 1967 Load: 23.6 t ADT: 11,224

I-81SB (LR 1005)

Fair

Over: SR 1017 (LR 53044)

EXIT 134 (38) DELANO EXIT, Schuylkill, PA

Built 1966 Load: 23.6 t ADT: 11,741

Showing 1,201-1,250 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.