Montgomery County, PA

608 public highway bridges

Montgomery County Bridge Snapshot

Montgomery County, Pennsylvania contains 608 public highway bridges in the FHWA National Bridge Inventory. Roughly 30.6% are rated “Good,” 36.8% “Fair,” 9.9% “Poor,” and 9.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in PA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

608

Total Bridges

30.6%

Good

9.9%

Poor

9.9%

Structurally Deficient

Condition Distribution

Good

30.6% (186)

Fair

36.8% (224)

Poor

9.9% (60)

SD

9.9% (60)

All Bridges (608)

Sort:

SCHUYLKILL EXPWAY.

Over: NORTH GULPH ROAD

KING OF PRUSSIA 3367-G07, Montgomery, PA

Built 1985 ADT: 11,083

SCHUYLKILL EXP-WAY

Over: CROTON ROAD

E. K OF P 34E02/3366K8, Montgomery, PA

Built 1950 ADT: 6,583

GYPSY LANE(T711)

Over: SCHUYLKILL EXPRESSWAY

3MIE.KING PRUSSIA 3367E09, Montgomery, PA

Built 1950 ADT: 43,137

SCHUYLKILL EXPWAY.

Over: MATSONFORD ROAD

1MI.W.CONSHOHOCK. 35B05, Montgomery, PA

Built 1950 ADT: 15,720

SCHUYLKILL EWAY EB

Over: RAMPS R & N & X

CONSHOHOCKEN INTER.35D04, Montgomery, PA

Built 1975 ADT: 5,764

SCHUYLKILL EXPWAY.

Over: RAMP D

WEST CONSHOHOCKEN 35D04, Montgomery, PA

Built 1951 ADT: 4,280

SCHUYLKILL EXPWAY.

Over: HOLLOW ROAD & CREEK

GLADWYNE EXIT 3478-K04, Montgomery, PA

Built 1951 ADT: 5,152

SCHUYLKILL EXPWAY.

Over: BELMONT AVENUE

BELMONT AVE INTER. 36G12, Montgomery, PA

Built 1952 ADT: 17,721

SCHUYLKILL EXPWAY.

Over: RIGHTERS FERRY ROAD

W.CITY AVE.INTERCH.40J01, Montgomery, PA

Built 1952 ADT: 950

SCHUYLKILL EWAY EB

Over: CITY LINE AVE & RAMP C

CITY LINE INTERCH 3479G09, Montgomery, PA

Built 1953 ADT: 36,519

ROUTE 100

Over: HIGH ST., NORFOLK SOUTH.

POTTSTOWN 3138E01, Montgomery, PA

Built 1954 ADT: 1,127

DEKALB PIKE

Over: SCHUYLKILL EXPRESSWAY

K OF P 34B1/3366G7, Montgomery, PA

Built 1950 ADT: 18,488

PA 309 BY-PASS

Over: WAVERLY/CEMETERY RDS.

CEDARBROOK 3370-C06, Montgomery, PA

Built 1960 ADT: 20

PA 309 BY-PASS

Over: CAMP HILL ROAD

FORT WASHINGTON 3257-H10, Montgomery, PA

Built 1958 ADT: 6,030

SR 309 BYPASS

Over: LOCH ALSH AVENUE

UPPER DUBLIN 3257H06, Montgomery, PA

Built 1958 ADT: 2,800

TRAFFIC ROUTE 309

Over: SUSQUEHANNA ROAD

UPPER DUBLIN 3257H05, Montgomery, PA

Built 1958 ADT: 7,465

SR 309 BYPASS

Over: BUTLER PIKE

UPPER DUBLIN 3257H04, Montgomery, PA

Built 1958 ADT: 5,800

TROOPER ROAD

Over: POTTSTOWN EXPRESSWAY

BETZWOOD 27J9/3366C3, Montgomery, PA

Built 1974 ADT: 12,850

POTTSTOWN BY-PASS

Over: PORTER ROAD

SANATOGA 3139-C02, Montgomery, PA

Built 1966 ADT: 9,000

POTTSTOWN EXPWAY

Over: SANATOGA RD, SANATOGA CR

SANATOGA 3139G02, Montgomery, PA

Built 1965 ADT: 1,050

AIRPORT ROAD

Over: POTTSTOWN EXPRESSWAY

LIMERICK TOWNSHIP 3140B03, Montgomery, PA

Built 1984 ADT: 25,179

POTTSTOWN EWAY(EB)

Over: LIMERICK CENTER ROAD

LIMERICK TWP 18K01/3140B4, Montgomery, PA

Built 1984 ADT: 2,442

POTTSTOWN EXWY(WB)

Over: LIMERICK CENTER ROAD

LIMERICK TWP 18K01/3140B4, Montgomery, PA

Built 1984 ADT: 2,442

POTTSTOWN EX (EB)

Over: LEWIS ROAD

LIMERICK INT. 18K3/3140C6, Montgomery, PA

Built 1976 ADT: 11,343

POTTSTOWN EX (WB)

Over: LEWIS ROAD

LIMERICK INT. 19A3/3140C6, Montgomery, PA

Built 1976 ADT: 11,343

COUNTRY CLUB ROAD

Over: POTTSTOWN EXPRESSWAY

SPRING FORD C.C. 3140-E08, Montgomery, PA

Built 1976 ADT: 25,179

P-TOWN X-WAY (EB)

Over: ROYERSFORD ROAD

N ROYERSFORD 3140F09, Montgomery, PA

Built 1976 ADT: 3,000

P-TOWN X-WAY (WB)

Over: ROYERSFORD ROAD

N ROYERSFORD 3140F09, Montgomery, PA

Built 1976 ADT: 6,200

POTTSTOWN EWAY(EB)

Over: LEWIS ROAD

E ROYERSFORD 19D08/3252H1, Montgomery, PA

Built 1976 ADT: 3,586

P-TOWN X-WAY (EB)

Over: PA 29 COLLEGEVILLE ROAD

COLLEGEVILLE 3253D05, Montgomery, PA

Built 1976 ADT: 9,032

P-TOWN X-WAY (WB)

Over: COLLEGEVILLE ROAD

COLLEGEVILLE 19K13/3253D5, Montgomery, PA

Built 1976 ADT: 9,032

P-TOWN X-WAY (EB)

Over: UPPER INDIAN HEAD ROAD

N. OF OAKS 27D3/3253H8, Montgomery, PA

Built 1984 ADT: 360

P-TOWN X-WAY (WB)

Over: UPPER INDIAN HEAD ROAD

N. OF OAKS 27D3/3253H8, Montgomery, PA

Built 1984 ADT: 360

P-TOWN X-WAY (EB)

Over: EGYPT ROAD

OAKS 27E5/3253J9, Montgomery, PA

Built 1982 ADT: 10,740

P-TOWN X-WAY (WB)

Over: EGYPT ROAD

OAKS 27E5/3253J9, Montgomery, PA

Built 1982 ADT: 10,740

MID-COUNTY EXWY.NB

Over: MONTGOMERY AVENUE

L. MERION 35A06 (3477-F2, Montgomery, PA

Built 1974 ADT: 8,000

MID-COUNTY EXWY.SB

Over: MONTGOMERY AVENUE

L. MERION 35A06 (3477-F2, Montgomery, PA

Built 1974 ADT: 8,000

MID-COUNTY EXWY-NB

Over: SCHUYLKILL EXWAY;RAMPS

CONSHOHOCKEN INTER3367J10, Montgomery, PA

Built 1977 ADT: 29,314

MID-COUNTY EXWY.SB

Over: SCHUYLKILL EXWAY;RAMPS

CONSHOHOCKEN INTER3367J10, Montgomery, PA

Built 1977 ADT: 5,812

MID-COUNTY EXWY.NB

Over: MATSONFORD/DEHAVEN RDS.

WEST CONSHOHOCKEN 3367J10, Montgomery, PA

Built 1976 ADT: 16,975

MID-COUNTY EXWY-NB

Over: BALLIGOMINGO RD/GULPH CR

WEST CONSHOHOCKEN 3367J09, Montgomery, PA

Built 1972 ADT: 3,089

MID-COUNTY EXWY.SB

Over: MATSONFORD/DEHAVEN RDS.

W. CONSHOHOCKEN 3367J10, Montgomery, PA

Built 1976 ADT: 16,975

MID-COUNTY EXWY-SB

Over: Balligomingo RD/Gulph CR

WEST CONSHOHOCKEN 3367F09, Montgomery, PA

Built 1972 ADT: 3,089

MID-COUNTY EXWY.NB

Over: PLYMOUTH CREEK;ACCESS RD

PLYMOUTH TWP. 3368A07, Montgomery, PA

Built 1974 ADT: 850

MID-COUNTY EXWY.NB

Over: BROOK ROAD

PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA

Built 1974 ADT: 1,200

MID-COUNTY EXWY.SB

Over: BROOK ROAD

PLYMOUTH TOWNSHIP 3368A07, Montgomery, PA

Built 1974 ADT: 1,600

RIDGE PIKE

Over: MID-COUNTY EXPRESSWAY

PLYMOUTH TOWNSHIP 29F12, Montgomery, PA

Built 1978 ADT: 43,421

MID-COUNTY EXWY.NB

Over: CHEMICAL ROAD / 3368-C5

PLYMOUTH TOWNSHIP 29G11, Montgomery, PA

Built 1974 ADT: 7,255

MID-COUNTY EXWY.NB

Over: CHEMICAL ROAD/3368-D4

SW.OF TPK.EXIT 25 29H10, Montgomery, PA

Built 1990 ADT: 15,172

RAMP K

Over: ACCESS ROAD / 3368-D3

AT TURNPIKE EXT 25 29H09, Montgomery, PA

Built 1989 ADT: 200

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 5, 2026