Total Bridges
14,867
Public highway bridges in Pennsylvania
State profile · Above median Poor share
Pennsylvania bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Pennsylvania, based on the FHWA National Bridge Inventory.
- 14,867
- Public bridges
- 37.4%
- Good condition
- 10.5%
- Poor condition
Data updated May 2026
Good Condition
37.4%
5,564 bridges rated 7-9
-12.6pp vs 50% benchmark
Poor Condition
10.5%
1,561 bridges whose lowest applicable component is rated 0-4
3.5pp vs national avg 7.0%
Pennsylvania vs national bridge condition
Pennsylvania - Good condition share 37.4%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Pennsylvania - Poor-condition share 35.0%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (67)
Adams 94 Allegheny 356 Armstrong 109 Beaver 84 Bedford 99 Berks 187 Blair 83 Bradford 114 Bucks 184 Butler 142 Cambria 67 Cameron 21 Carbon 29 Centre 183 Chester 285 Clarion 119 Clearfield 195 Clinton 147 Columbia 187 Crawford 263 Cumberland 239 Dauphin 283 Delaware 269 Elk 95 Erie 331 Fayette 341 Forest 51 Franklin 215 Fulton 97 Greene 209 Huntingdon 162 Indiana 214 Jefferson 140 Juniata 109 Lackawanna 212 Lancaster 509 Lawrence 162 Lebanon 221 Lehigh 255 Luzerne 307 Lycoming 301 McKean 166 Mercer 273 Mifflin 129 Monroe 214 Montgomery 608 Montour 74 Northampton 253 Northumberland 193 Perry 102 Philadelphia 584 Pike 108 Potter 145 Schuylkill 199 Snyder 106 Somerset 400 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 619 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
8.92% top marginal rate
AK
Alaska
10.12% top marginal rate
PA
Pennsylvania
10.50% top marginal rate
ND
North Dakota
10.84% top marginal rate
LA
Louisiana
11.00% top marginal rate
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.
SR0286
PoorOver: KISKIMINETAS RIVER
SALTSBURG, Indiana, PA
Built 1985 Load: 0.9 t ADT: 4,169
T-783 HARRIS HILL
PoorOver: TOBYS CREEK
100 FT NE OF SR 309, Luzerne, PA
Built 1920 Load: 0.9 t ADT: 220
BRIDGE 2805,T-303
PoorOver: OVER SHENANGO RIVER TRIB
HEASLEY RD SHENANGO TWP, Mercer, PA
Built 1922 Load: 0.9 t ADT: 89
SR 3014
PoorOver: LAUREL HILL CREEK
BARRONVALE, Somerset, PA
Built 1962 Load: 0.9 t ADT: 167
Clark Street
PoorOver: Fallen Timber Run
Clark St, Hooversville, Somerset, PA
Built 1910 Load: 0.9 t ADT: 100
SR 4012
PoorOver: LOYALSOCK CREEK
BORO OF FORKSVILLE, Sullivan, PA
Built 1850 Load: 0.9 t ADT: 137
All Bridges in Pennsylvania
TRAFFIC ROUTE 309
UnknownOver: SUSQUEHANNA ROAD
UPPER DUBLIN 3257H05, Montgomery, PA
Built 1958 ADT: 7,465
SR 309 BYPASS
UnknownOver: BUTLER PIKE
UPPER DUBLIN 3257H04, Montgomery, PA
Built 1958 ADT: 5,800
TROOPER ROAD
UnknownOver: POTTSTOWN EXPRESSWAY
BETZWOOD 27J9/3366C3, Montgomery, PA
Built 1974 ADT: 12,850
POTTSTOWN BY-PASS
UnknownOver: PORTER ROAD
SANATOGA 3139-C02, Montgomery, PA
Built 1966 ADT: 9,000
POTTSTOWN EXPWAY
UnknownOver: SANATOGA RD, SANATOGA CR
SANATOGA 3139G02, Montgomery, PA
Built 1965 ADT: 1,050
AIRPORT ROAD
UnknownOver: POTTSTOWN EXPRESSWAY
LIMERICK TOWNSHIP 3140B03, Montgomery, PA
Built 1984 ADT: 25,179
POTTSTOWN EWAY(EB)
UnknownOver: LIMERICK CENTER ROAD
LIMERICK TWP 18K01/3140B4, Montgomery, PA
Built 1984 ADT: 2,442
POTTSTOWN EXWY(WB)
UnknownOver: LIMERICK CENTER ROAD
LIMERICK TWP 18K01/3140B4, Montgomery, PA
Built 1984 ADT: 2,442
POTTSTOWN EX (EB)
UnknownOver: LEWIS ROAD
LIMERICK INT. 18K3/3140C6, Montgomery, PA
Built 1976 ADT: 11,343
POTTSTOWN EX (WB)
UnknownOver: LEWIS ROAD
LIMERICK INT. 19A3/3140C6, Montgomery, PA
Built 1976 ADT: 11,343
COUNTRY CLUB ROAD
UnknownOver: POTTSTOWN EXPRESSWAY
SPRING FORD C.C. 3140-E08, Montgomery, PA
Built 1976 ADT: 25,179
P-TOWN X-WAY (EB)
UnknownOver: ROYERSFORD ROAD
N ROYERSFORD 3140F09, Montgomery, PA
Built 1976 ADT: 3,000
P-TOWN X-WAY (WB)
UnknownOver: ROYERSFORD ROAD
N ROYERSFORD 3140F09, Montgomery, PA
Built 1976 ADT: 6,200
POTTSTOWN EWAY(EB)
UnknownOver: LEWIS ROAD
E ROYERSFORD 19D08/3252H1, Montgomery, PA
Built 1976 ADT: 3,586
P-TOWN X-WAY (EB)
UnknownOver: PA 29 COLLEGEVILLE ROAD
COLLEGEVILLE 3253D05, Montgomery, PA
Built 1976 ADT: 9,032
P-TOWN X-WAY (WB)
UnknownOver: COLLEGEVILLE ROAD
COLLEGEVILLE 19K13/3253D5, Montgomery, PA
Built 1976 ADT: 9,032
P-TOWN X-WAY (EB)
UnknownOver: UPPER INDIAN HEAD ROAD
N. OF OAKS 27D3/3253H8, Montgomery, PA
Built 1984 ADT: 360
P-TOWN X-WAY (WB)
UnknownOver: UPPER INDIAN HEAD ROAD
N. OF OAKS 27D3/3253H8, Montgomery, PA
Built 1984 ADT: 360
P-TOWN X-WAY (EB)
UnknownOver: EGYPT ROAD
OAKS 27E5/3253J9, Montgomery, PA
Built 1982 ADT: 10,740
P-TOWN X-WAY (WB)
UnknownOver: EGYPT ROAD
OAKS 27E5/3253J9, Montgomery, PA
Built 1982 ADT: 10,740
MID-COUNTY EXWY.NB
UnknownOver: MONTGOMERY AVENUE
L. MERION 35A06 (3477-F2, Montgomery, PA
Built 1974 ADT: 8,000
MID-COUNTY EXWY.SB
UnknownOver: MONTGOMERY AVENUE
L. MERION 35A06 (3477-F2, Montgomery, PA
Built 1974 ADT: 8,000
MID-COUNTY EXWY-NB
UnknownOver: SCHUYLKILL EXWAY;RAMPS
CONSHOHOCKEN INTER3367J10, Montgomery, PA
Built 1977 ADT: 29,314
MID-COUNTY EXWY.SB
UnknownOver: SCHUYLKILL EXWAY;RAMPS
CONSHOHOCKEN INTER3367J10, Montgomery, PA
Built 1977 ADT: 5,812
MID-COUNTY EXWY.NB
UnknownOver: MATSONFORD/DEHAVEN RDS.
WEST CONSHOHOCKEN 3367J10, Montgomery, PA
Built 1976 ADT: 16,975
MID-COUNTY EXWY-NB
UnknownOver: BALLIGOMINGO RD/GULPH CR
WEST CONSHOHOCKEN 3367J09, Montgomery, PA
Built 1972 ADT: 3,089
MID-COUNTY EXWY.SB
UnknownOver: MATSONFORD/DEHAVEN RDS.
W. CONSHOHOCKEN 3367J10, Montgomery, PA
Built 1976 ADT: 16,975
MID-COUNTY EXWY-SB
UnknownOver: Balligomingo RD/Gulph CR
WEST CONSHOHOCKEN 3367F09, Montgomery, PA
Built 1972 ADT: 3,089
MID-COUNTY EXWY.NB
UnknownOver: PLYMOUTH CREEK;ACCESS RD
PLYMOUTH TWP. 3368A07, Montgomery, PA
Built 1974 ADT: 850
MID-COUNTY EXWY.NB
UnknownOver: BROOK ROAD
PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA
Built 1974 ADT: 1,200
MID-COUNTY EXWY.SB
UnknownOver: BROOK ROAD
PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA
Built 1974 ADT: 1,600
RIDGE PIKE
UnknownOver: MID-COUNTY EXPRESSWAY
PLYMOUTH TOWNSHIP 29F12, Montgomery, PA
Built 1978 ADT: 43,421
MID-COUNTY EXWY.NB
UnknownOver: CHEMICAL ROAD / 3368-C5
PLYMOUTH TOWNSHIP 29G11, Montgomery, PA
Built 1974 ADT: 7,255
MID-COUNTY EXWY.NB
UnknownOver: CHEMICAL ROAD/3368-D4
SW.OF TPK.EXIT 25 29H10, Montgomery, PA
Built 1990 ADT: 15,172
RAMP K
UnknownOver: ACCESS ROAD / 3368-D3
AT TURNPIKE EXT 25 29H09, Montgomery, PA
Built 1989 ADT: 200
EASTON RD 3258K4
UnknownOver: PA TURNPIKE RAMP AB
UPPER MORELAND 3254K04, Montgomery, PA
Built 1953 ADT: 12,876
S 202 - RAMP R
UnknownOver: SCHUYLKILL PARKWAY
BRIDGEPORT 28J10/3367D4, Montgomery, PA
Built 1972 ADT: 7,810
PLYMOUTH ROAD
UnknownOver: PA TURNPK (EB/WB)/3368E3
JUST E.GERMAN PK. 29J09, Montgomery, PA
Built 1989 ADT: 7
WEST AIRY STREET
UnknownOver: MARKLEY ST;SEPTA;CRK;RD
NORRISTOWN 3367-E02, Montgomery, PA
Built 1977 ADT: 1
CONSHOHOCKEN ROAD
UnknownOver: UPPER MERION & PLYMOUTH
PLYMOUTH TWP.35D01/3367K8, Montgomery, PA
Built 1964 ADT: 15
NEW US 202
UnknownOver: SCHUYLKILL PKWY,RD,NSRC
BRIDGEPORT 3367-D04, Montgomery, PA
Built 1972 ADT: 980
PAWLINGS RD
UnknownOver: P-TOWN EXPWY, SCH.RV.TRL
SOUTH OF OAKS 3365H02, Montgomery, PA
Built 1981 ADT: 32,023
EVERGREEN ROAD
UnknownOver: POTTSTOWN EXPWAY/3139-H2
LOWER POTTSGROVE 3139H02, Montgomery, PA
Built 1984 ADT: 25,179
RIDGE PIKE
UnknownOver: TOWNSHIP LINE ROAD
LIMERICK 3139-J02, Montgomery, PA
Built 1965 ADT: 4,706
Easton Road
UnknownOver: SR0073; Church Road
.5 Mi N PA-309 3370-E6, Montgomery, PA
Built 1933 ADT: 8,767
T-110 (SB)
UnknownOver: PA TPK (I-276)
NEAR KING OF PRUSSIA, Montgomery, PA
Built 1954 ADT: 55,966
PA TPK (I-276)
UnknownOver: SR 3027, LR46137
SOUTH OF NORRISTOWN, Montgomery, PA
Built 2008 ADT: 2,553
RIDGE PIKE
UnknownOver: PA TPK (I-276)
SOUTHEAST OF NORRISTOWN, Montgomery, PA
Built 1954 ADT: 65,138
PA TPK (I-276)
UnknownOver: T-694
WEST OF NORRISTOWN INTG, Montgomery, PA
Built 2006 ADT: 200
PA TPK RAMP AB
UnknownOver: PA TPK (I-276)
NORRISTOWN INTERCHANGE, Montgomery, PA
Built 1954 ADT: 18,393
Showing 1,451-1,500 of 14,867 bridges
Related
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.