Dauphin County, PA

283 public highway bridges

Dauphin County Bridge Snapshot

Dauphin County, Pennsylvania contains 283 public highway bridges in the FHWA National Bridge Inventory. Roughly 19.8% are rated “Good,” 38.5% “Fair,” 6.7% “Poor,” and 6.7% 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.

283

Total Bridges

19.8%

Good

6.7%

Poor

6.7%

Structurally Deficient

Condition Distribution

Good

19.8% (56)

Fair

38.5% (109)

Poor

6.7% (19)

SD

6.7% (19)

All Bridges (283)

Sort:

T-390/FDDLRS ELBOW

Over: US 322; SR 0322

1 MI W OF HUMMELSTOWN, Dauphin, PA

Built 1953 ADT: 22,954

US 422; SR 0422

Over: US 322; SR 0322

1 MI. E. HUMMELSTOWN, Dauphin, PA

Built 1953 ADT: 11,809

PA 441; SR 0441

Over: PA 283; SR 0300

2MILE N E OF HIGHSPIRE, Dauphin, PA

Built 1971 ADT: 27,820

PA 441; LINDLE RD.

Over: I-283; SR 0283

2MILES N OF HIGHSPIRE, Dauphin, PA

Built 1969 ADT: 25,249

PA 443; SR 0443

Over: SR 0022; RAMP P;US22-322

1 MI E DAUPHIN, Dauphin, PA

Built 1977 ADT: 20,777

SR 2003

Over: T496,SWATARA CR,RAILROAD

1.5 MI. N.E. MIDDLETOWN, Dauphin, PA

Built 1972 ADT: 500

SR 2005 WALTONVILL

Over: SR 0322; US 322

.5 MI. S. HUMMELSTOWN, Dauphin, PA

Built 1968 ADT: 16,021

SR 3006

Over: SR 0283 & SR 3001

S.OF PENN HARRIS INT., Dauphin, PA

Built 1970 ADT: 26,820

SR 3007

Over: I-83; SR 0083

19 ST CITY OF HARRISBURG, Dauphin, PA

Built 1961 ADT: 38,859

SR 3010 WB

Over: I-83; SR 0083

SWATARA TOWNSHIP, Dauphin, PA

Built 1961 ADT: 36,068

MULBERRY ST

Over: SR 0230,AMTRAK, NSRC

MULBERRY STREET, Dauphin, PA

Built 1909 ADT: 15,017

SR 3012

Over: US 322; SR 3001

DERRY ST. LAWNTON, Dauphin, PA

Built 1953 ADT: 17,064

SR 3013

Over: I-83; SR 0083

29TH STREET OVER I-83, Dauphin, PA

Built 1961 ADT: 36,184

SR 3016;Forster St

Over: US-11/15;Susquehanna Riv

City of Harrisburg, Dauphin, PA

Built 1951 ADT: 12,523

SR 3017

Over: I-81; SR 0081

1.5 NORTH OF PROGRESS, Dauphin, PA

Built 1968 ADT: 34,584

SR 3021; TWP RD

Over: I-81;RP AF,C,G;PAXTON CK

I-81 & 22-322 INTERCHANGE, Dauphin, PA

Built 1974 ADT: 4,824

TWP RD 382

Over: SR 3032

1.0 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 6,829

SR 3032 AIRPORT CN

Over: I-76; SR 9076

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 29,356

SR 3032 AIRPORT CN

Over: TWP RD 333

1.5 MI. N.E. OF HIGHSPIRE, Dauphin, PA

Built 1976 ADT: 1

SR 3032 OBERLIN RD

Over: PA 283; SR 0300

2 MI. N.E. HIGHSPIRE, Dauphin, PA

Built 1971 ADT: 27,820

PA TPK (I-76)

Over: T-380

LOWER SWATARA TWP, Dauphin, PA

Built 1949 ADT: 1,000

PA TPK (I-76)

Over: T-333

LOWER SWATARA TWP, Dauphin, PA

Built 1949 ADT: 200

PA TPK (I-76)

Over: LR22072,SR2002

LONDONDERRY TWP, Dauphin, PA

Built 1949 ADT: 818

PA TPK (I-76)

Over: LR22009,SR2007

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 1,299

T-602

Over: PA TPK (I-76)

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 24,423

PA TPK (I-76)

Over: LR22007, PA 743

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 15,627

PA TPK (I-76)

Over: T-570

CONEWAGO TWP, Dauphin, PA

Built 1949 ADT: 100

LR 22010,SR2009

Over: PA TPK (I-76)

CONEWAGO TOWNSHIP, Dauphin, PA

Built 1950 ADT: 23,988

RAMP C-C;SR 8001

Over: FR ST.SR 3009 SUSQ.RIVER

N.END WADE BRIDGE, Dauphin, PA

Built 1972 ADT: 8,409

SR 8001,RAMP G I81

Over: SR 3009

SUSQUEHANNA TWP, Dauphin, PA

Built 1972 ADT: 5,098

SR 8003; RAMP B

Over: I-81; SR 0081

INTER I81 & US22, Dauphin, PA

Built 1977 ADT: 40,563

SR 8003, RAMP C

Over: I-81; SR 8003, RAMP B

INTER I81 & US22, Dauphin, PA

Built 1977 ADT: 40,563

SR 8003 RAMP A

Over: SR 8003 RAMP C

INTER OF I81 & US22, Dauphin, PA

Built 1977 ADT: 14,612

SR 8027; RAMP A

Over: SR 3001; EISENHOWER BLVD

EISENHOWER INTERCHANGE, Dauphin, PA

Built 1970 ADT: 13,464

SR 3035

Over: RAMP A

WEST OF DAUPHIN BORO, Dauphin, PA

Built 1999 ADT: 3,894

SR 3035

Over: RAMP D

WEST OF DAUPHIN, Dauphin, PA

Built 1999 ADT: 4,794

SR 8045 RAMP C

Over: US 22/322

WEST OF DAUPHIN, Dauphin, PA

Built 1999 ADT: 22,720

RAMP D

Over: US 22/322

WEST OF DAUPHIN BORO, Dauphin, PA

Built 1999 ADT: 23,526

HAGY LANE

Over: US 22/322, NS RAILROAD

WEST OF DAUPHIN, Dauphin, PA

Built 1999 ADT: 26,851

US 22/322

Over: MARKET STREET

DAUPHIN BORO, Dauphin, PA

Built 1999 ADT: 1

US 22/322 EB

Over: SR 0325 & Trib Susquehan

WEST OF CLARKS FERRY, Dauphin, PA

Built 1999 ADT: 452

US 22/322 WB

Over: PA325/Trib to Susque Riv

WEST OF CLARKS FERRY, Dauphin, PA

Built 1999 ADT: 452

SR 3012 Market St.

Over: Riverside Dr. (City Is.)

CITY ISLAND, Dauphin, PA

Built 2006 ADT: 200

PA TPK (I-76)

Over: LR22019,SR3001

LOWER SWATARA TWP, Dauphin, PA

Built 2007 ADT: 9,899

SR3026;Elmerton Av

Over: I-83; SR 0083 NB/SB

0.2 Mi N of Ex 50 (US-22), Dauphin, PA

Built 2016 ADT: 28,641

PA TPK (I-76)

Over: LR22016, SR2003

Lower Swatara Twp., Dauphin, PA

Built 2016 ADT: 10,322

SR 3020

Over: I 83; SR 0083

1.5MI E OF HARRISBURG, Dauphin, PA

Built 2017 ADT: 37,590

US 22; SR 0022

Over: I-83; SR 0083

COLONIAL PARK, Dauphin, PA

Built 2018 ADT: 28,641

I-83; SR 0083

Over: SR 3024; Locust Lane

PROGRESS, Dauphin, PA

Built 2021 ADT: 6,142

PA-39;Hershey Rd.

Over: Swatara Creek

0.5 Mi. N. of Hershey, Dauphin, PA

Built 1967 Load: 13.6 t ADT: 12,880

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 6, 2026