Mifflin County, PA

129 public highway bridges

Mifflin County Bridge Snapshot

Mifflin County, Pennsylvania contains 129 public highway bridges in the FHWA National Bridge Inventory. Roughly 38% are rated “Good,” 28.7% “Fair,” 7% “Poor,” and 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.

129
Total Bridges
38%
Good
7%
Poor
7%
Structurally Deficient

Condition Distribution

Good
38% (49)
Fair
28.7% (37)
Poor
7% (9)
SD
7% (9)

All Bridges (129)

T-430 OLD PARK RD

Good

Over: HUNGRY RUN

500 FT N OF SR 2002, Mifflin, PA

Built 2011 Load: 44.5 t ADT: 173

T-433 RIDENS RD

Good

Over: HUNGRY RUN

500 FT N OF SR 2002, Mifflin, PA

Built 2011 Load: 44.5 t ADT: 150

SPECTACLE GAP ROAD

Good

Over: EAST LICKING CREEK

150' SE OF LICKING CRK DR, Mifflin, PA

Built 1998 Load: 45.4 t ADT: 40

T-467

Good

Over: TREASTER RUN

2600 FT SOUTH OF T-471, Mifflin, PA

Built 2002 Load: 45.4 t ADT: 100

Locke Mills Rd

Good

Over: Honey Creek

LOCKE MILLS, Mifflin, PA

Built 2018 Load: 47.0 t ADT: 950

ON FREEDOM AVENUE

Good

Over: KISHACOQUILLAS CREEK

BURNHAM BORO, Mifflin, PA

Built 2019 Load: 47.0 t ADT: 11,573

SR 305

Good

Over: LITTLE KISHACOQUILLAS CR

BELLEVILLE, Mifflin, PA

Built 2009 Load: 47.2 t ADT: 1,765

COOPERS GAP ROAD

Good

Over: TEA CREEK

1/2 MI NW OF SR 4006, Mifflin, PA

Built 1930 Load: 48.1 t ADT: 35

SR 322-US 322 E.B.

Good

Over: TRIB LAUREL RUN

MILROY, Mifflin, PA

Built 1999 Load: 49.0 t ADT: 8,370

SR 322-US 322 W.B.

Good

Over: TRIB LAUREL RUN

MILROY, Mifflin, PA

Built 1999 Load: 49.0 t ADT: 8,559

SR 322-US 322 E.B.

Good

Over: LINGLE CREEK

MILROY, Mifflin, PA

Built 1999 Load: 49.0 t ADT: 8,394

SR 322-US 322 W.B.

Good

Over: LINGLE CREEK

MILROY, Mifflin, PA

Built 1999 Load: 49.0 t ADT: 8,585

T-430 OLD PARK RD

Good

Over: HUNGRY RUN

225 FT NW OF FREEDOM AVE, Mifflin, PA

Built 2005 Load: 49.0 t ADT: 173

SR 3002 EB

Good

Over: SR 6022

4 MI W OF LEWISTOWN EXIT, Mifflin, PA

Built 2005 Load: 52.6 t ADT: 4,314

SR 3002 WB

Good

Over: SR 6022

4 MI WEST OF LEWISTOWN, Mifflin, PA

Built 2005 Load: 53.5 t ADT: 4,181

SR 3021

Good

Over: JUNIATA RIVER

NEWTON HAMILTON BORO, Mifflin, PA

Built 1999 Load: 54.4 t ADT: 503

SR 2007

Good

Over: KISHACOQUILLAS CREEK

2 MILES NORTH LEWISTOWN, Mifflin, PA

Built 2009 Load: 54.4 t ADT: 1,926

SR 522-US 522

Good

Over: KISHACOQUILLAS CREEK

LEWISTOWN BORO, Mifflin, PA

Built 1991 Load: 57.2 t ADT: 5,389

T-702

Good

Over: TOWN RUN

.4 MILES WEST OF SR 3009, Mifflin, PA

Built 2008 Load: 57.2 t ADT: 25

SR 4013

Good

Over: TRIB TO BUCK RUN

1 MILE SOUTH WEST BURNHAM, Mifflin, PA

Built 2004 Load: 88.9 t ADT: 1,528

T-783

Poor

Over: BUCK RUN

900 FT SOUTH OF SR 4013, Mifflin, PA

Built 1960 Load: 18.1 t ADT: 378

T-439

Poor

Over: TEA CREEK

400FT W INTER T439-LR29, Mifflin, PA

Built 1930 Load: 30.8 t ADT: 628

T-465

Poor

Over: TREASTER RUN

800 FT SOUTH OF LR499, Mifflin, PA

Built 1915 Load: 32.7 t ADT: 200

T-439

Poor

Over: KISHACOQUILLAS CREEK

1300FT W INTER T439-LR29, Mifflin, PA

Built 1920 Load: 32.7 t ADT: 628

T-321

Poor

Over: MEADOW CREEK

700 FT WEST OF T-737, Mifflin, PA

Built 1915 Load: 32.7 t ADT: 75

SR 103-PA 103

Poor

Over: JACKS CREEK

LEWISTOWN BOROUGH, Mifflin, PA

Built 1965 Load: 33.6 t ADT: 2,324

SR 2008

Poor

Over: BRANCH JACKS CREEK

2 MILE NORTH EAST WAGNER, Mifflin, PA

Built 1963 Load: 35.4 t ADT: 357

T-383, SNOOK ROAD

Poor

Over: BELLTOWN RUN

350 FT EAST OF T707, Mifflin, PA

Built 1941 Load: 45.4 t ADT: 161

T-391, ERTLEY ROAD

Structurally Deficient

Over: BELLTOWN RUN

100FT WEST OF T-450, Mifflin, PA

Built 1935 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