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)

T-515 Kiwanis Road

Fair

Over: Walnut Run

2 mi NE I-81 Exit 77, Dauphin, PA

Built 2010 Load: 59.0 t ADT: 300

SR 2010

Fair

Over: MANADA CREEK

SAND BEACH, Dauphin, PA

Built 1941 Load: 60.8 t ADT: 1,585

PA 441; SR 0441

Fair

Over: SWATARA CREEK

ROYALTON BORO, Dauphin, PA

Built 1959 Load: 68.0 t ADT: 3,793

WATER COMPANY RD

Fair

Over: TRIB TO WICONISCO CREEK

WATER COMPANY ROAD BRIDGE, Dauphin, PA

Built 1985 Load: 74.4 t ADT: 75

PA 443; SR 0443

Fair

Over: MANADA CREEK

2 MI. N. SHELLSVILLE, Dauphin, PA

Built 1940 Load: 86.2 t ADT: 1,212

PA TPK (I-76)

Fair

Over: LAUREL RUN

HIGHSPIRE BORO, Dauphin, PA

Built 1949 Load: 89.7 t ADT: 29,356

PA TPK (I-76)

Fair

Over: HOFFERS CREEK

CONEWAGO TWP, Dauphin, PA

Built 1949 Load: 89.7 t ADT: 24,423

US 22/322; SR 0022

Fair

Over: PRIVATE DRIVE;FISHING CR

0.1 MI S OF PA 443 INTER, Dauphin, PA

Built 1977 Load: 99.8 t ADT: 37,718

PA 443; SR 0443

Good

Over: FISHING CREEK

2 MI. S.E. DAUPHIN, Dauphin, PA

Built 1968 Load: 31.8 t ADT: 1,556

T-601 Jonestown Rd

Good

Over: Bow Creek

.5SW Grntvle/TR-Swtra/EHT, Dauphin, PA

Built 2012 Load: 32.4 t ADT: 2,000

PA TPK (RAMP AB)

Good

Over: PA TPK (I-76)

LOWER SWATARA TWP, Dauphin, PA

Built 2007 Load: 32.7 t ADT: 11,974

Schoolhouse Lane

Good

Over: Slotznick Run

0.3 Mi Ea I-83 Slotznick, Dauphin, PA

Built 2013 Load: 32.7 t ADT: 3,547

T-467 Carlson Road

Good

Over: Manada Creek

1 E US22 and PA39, Dauphin, PA

Built 2015 Load: 33.0 t ADT: 650

PA TPK (I-76)

Good

Over: Swatara Cr. & T-496

W. of Toll House Rd. Int., Dauphin, PA

Built 2016 Load: 33.7 t ADT: 24,423

PA 39; SR 0039

Good

Over: BRANCH OF PAXTON CREEK

3MI W OF LINGLESTOWN, Dauphin, PA

Built 1964 Load: 34.5 t ADT: 19,247

PA 147; SR 0147

Good

Over: GURDY RUN

1.5 MI N OF HALIFAX, Dauphin, PA

Built 2017 Load: 35.0 t ADT: 6,189

T570;MAPLEDALE RD

Good

Over: TRIB. TO HOFFER CREEK

0.5 MI SE OF SR 341, Dauphin, PA

Built 2022 Load: 35.3 t ADT: 175

T495;MCINTOSH RD

Good

Over: PAXTON CREEK

1.8N I/S 81&83/TR PXTN CR, Dauphin, PA

Built 2021 Load: 35.3 t ADT: 150

PA 39; SR 0039

Good

Over: BEAVER CREEK

1 MI E LINGLESTOWN, Dauphin, PA

Built 1977 Load: 35.4 t ADT: 7,933

SR 2017

Good

Over: MANADA CREEK

MANADA HILL, Dauphin, PA

Built 2013 Load: 35.6 t ADT: 711

I-83; SR 0083

Good

Over: T-411; Londonderry Rd

.25 MI.N.OF UNION DEPOSIT, Dauphin, PA

Built 2021 Load: 35.6 t ADT: 74,815

SR 2017

Good

Over: MANADA CREEK

.5 MI.W. OF SHELLSVILLE, Dauphin, PA

Built 2015 Load: 36.3 t ADT: 689

T-382 Baker Ave.

Good

Over: PA TPK (I-76)

Lower Swatara Twp., Dauphin, PA

Built 2015 Load: 36.3 t ADT: 200

Bonnymeade Ave.

Good

Over: Spring Creek

SPRG CRK OFF DERRY STREET, Dauphin, PA

Built 2013 Load: 36.9 t ADT: 1,920

T-690 Duke Street

Good

Over: Swatara Creek

Swatra/Han Twp/Humlstown, Dauphin, PA

Built 2017 Load: 36.9 t ADT: 1,546

SR 1021

Good

Over: WICONISCO CREEK

1.5 MI N.W. E-VILLE, Dauphin, PA

Built 2005 Load: 37.2 t ADT: 875

US 322; SR 0322

Good

Over: SPRING CREEK

1 MI. S.E. HERSHEY, Dauphin, PA

Built 2014 Load: 37.3 t ADT: 13,698

POTATO VALLEY RD.

Good

Over: Fishing creek

2 NE FT HUNTER/FISHING CR, Dauphin, PA

Built 2020 Load: 37.6 t ADT: 431

SR 2030

Good

Over: Beaver Creek

1/2 MI. S. LINGLESTOWN, Dauphin, PA

Built 2020 Load: 37.9 t ADT: 2,847

Manda Bott Rd

Good

Over: Manda Ck

1 MI. N. OF SHELLSVILLE, Dauphin, PA

Built 2009 Load: 38.1 t ADT: 689

US 209; SR 0209

Good

Over: WICONISCO CREEK

1.5 MI.E. OF WILLIAMSTOWN, Dauphin, PA

Built 2011 Load: 38.6 t ADT: 4,158

US 22; SR 0022 WB

Good

Over: MANADA CREEK

1 MI S MANADA, Dauphin, PA

Built 2013 Load: 38.6 t ADT: 3,751

US 22; SR 0022 EB

Good

Over: MANADA CREEK

1 MI S MANADA, Dauphin, PA

Built 2013 Load: 38.6 t ADT: 3,814

I-83; SR 0083

Good

Over: T-586; Megoulas Blvd.

.5 MI.N. OF UNION DEPOSIT, Dauphin, PA

Built 2021 Load: 38.9 t ADT: 74,815

Rutter Rd (SR4004)

Good

Over: Armstrong Creek

2 MI. W. ENDERS, Dauphin, PA

Built 2016 Load: 39.5 t ADT: 387

PA TPK (I-76)

Good

Over: M'town & H'town RR

Lower Swatara Twp., Dauphin, PA

Built 2016 Load: 39.5 t ADT: 24,423

SR 2010

Good

Over: BEAVER CREEK

2 MI. N.W.HUMMELSTOWN, Dauphin, PA

Built 2006 Load: 39.9 t ADT: 2,110

PA 743; SR 0743

Good

Over: Norfolk Southern RR

HERSHEY, Dauphin, PA

Built 2013 Load: 40.2 t ADT: 8,898

I-83 SB; SR 0083

Good

Over: T-431, Valley Road

1 MI.N.E. OF PROGRESS, Dauphin, PA

Built 2020 Load: 40.2 t ADT: 28,234

RIDGE RD., T-563

Good

Over: ARMSTRONG CREEK

.6E HLFX/URICH SCH/ARMSTR, Dauphin, PA

Built 1998 Load: 40.8 t ADT: 150

I-83 NB; SR 0083

Good

Over: T-431, Valley Road

1 MI. N. OF PROGRESS, Dauphin, PA

Built 2020 Load: 40.8 t ADT: 28,641

SR 3020

Good

Over: TRIB. TO BEAVER CREEK

3 MI.N.W.HUMMELSTOWN, Dauphin, PA

Built 2004 Load: 41.7 t ADT: 6,363

SR4008

Good

Over: LITTLE WICONISCO CREEK

2.5 MI NE MILLERSBURG, Dauphin, PA

Built 2005 Load: 41.7 t ADT: 140

T-526 Walnut Run C

Good

Over: Walnut Run

West Hanover Twp. Dauphin, Dauphin, PA

Built 2004 Load: 41.7 t ADT: 50

Mattis's Mil T-550

Good

Over: Wiconisco Creek

Washington Township, Dauphin, PA

Built 2009 Load: 41.7 t ADT: 50

T-601; JONESTOWN R

Good

Over: Beaver Creek

1 E PAXTONIA/BEAVER CRK, Dauphin, PA

Built 2018 Load: 41.7 t ADT: 4,929

Park Blvd. T-591

Good

Over: Spring Creek

SW Side Hershey Park, Dauphin, PA

Built 2016 Load: 41.8 t ADT: 6,485

US 422; SR 0422

Good

Over: SPRING CREEK

HERSHEY, Dauphin, PA

Built 1928 Load: 42.6 t ADT: 15,639

SR 2011 BACHMNVILL

Good

Over: BRANCH OF SPRING CREEK

1 MI. E. HOCKERSVILLE, Dauphin, PA

Built 2007 Load: 43.5 t ADT: 1,880

MILL ROAD, T-564

Good

Over: CONEWAGO CREEK

CWT-2 MILL ROAD BRIDGE, Dauphin, PA

Built 2021 Load: 43.7 t ADT: 182

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