Total bridges
254
Public highway bridges in Adams County
County profile · official public datasets
Adams County, PA
254 public highway bridges tracked in the FHWA National Bridge Inventory: 36.2% rated Good, 57.1% Fair, 6.7% Poor.
- 254
- Public bridges
- 36.2%
- Good condition
- 6.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Adams County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 15%
- lowest Poor share in state
- 6.7%
- Poor-condition share
- 254
- public highway bridges
- 1972
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Adams County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Adams County ranks #10 of 67 Pennsylvania counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.7%). Adams County, Pennsylvania contains 254 public highway bridges. Roughly 36.2% are rated “Good,” 57.1% “Fair,” and 6.7% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Good condition
36.2%
92 of 254 rated 7-9
Fair condition
57.1%
145 of 254 rated 5-6
Poor condition
6.7%
17 of 254 rated 4 or below
In-state Poor-share rank
#10 of 67
Among Pennsylvania counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 254 NBI-tracked bridges by lowest applicable component rating.
Good 36.2% (92)
Fair 57.1% (145)
Poor 6.7% (17)
Adams County's Poor-condition bridges carry 16,457 vehicle crossings a day
That is 2.2% of the county's reported daily bridge traffic on 6.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 968 crossings a day against 3,222 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 254 of 254 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
55.5% of Adams County's bridges have passed the 50-year mark
141 of the 254 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 36.2% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 27.4% of the county's Poor-condition bridge traffic
PA 34; SR 0034 over CONEWAGO CREEK, built 1920, carries 4,513 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 17-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 16,457 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Adams County's bridges were built
254 bridges with a recorded construction year, grouped by decade
- pre-1900 2
Built before 1900
2 bridges
- 1900s 4
1900–1909
4 bridges
- 1910s 3
1910–1919
3 bridges
- 1920s 14
1920–1929
14 bridges
- 1930s 17
1930–1939
17 bridges
- 1940s
1940–1949
20 bridges
- 1950s
1950–1959
24 bridges
- 1960s
1960–1969
48 bridges
- 1970s 19
1970–1979
19 bridges
- 1980s 13
1980–1989
13 bridges
- 1990s
1990–1999
23 bridges
- 2000s 19
2000–2009
19 bridges
- 2010s
2010–2019
41 bridges
- 2020s 7
2020–2029
7 bridges
What this shows Construction peaked in the 1960s, when 48 of the county's bridges still in the inventory were built, which is 18.9% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1972) matches the Pennsylvania average (1970).
How Adams County compares with Pennsylvania's closest counties by inventory size
The 5 Pennsylvania counties nearest Adams County in number of bridges, with their condition splits. Its 6.7% Poor share is the 1st-lowest of these 6. Its average build year of 1972 against a peer-group mean of 1970 is in line with the group.
Showing the 5 closest of 66 Pennsylvania counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Columbia County | 271 | 42.8% | 47.2% | 10% | 1965 |
| Lawrence County | 265 | 47.5% | 41.1% | 11.3% | 1978 |
| Armstrong County | 263 | 33.5% | 58.6% | 8% | 1976 |
| Wayne County | 259 | 27% | 41.7% | 31.3% | 1967 |
| Adams County (this page) | 254 | 36.2% | 57.1% | 6.7% | 1972 |
| Huntingdon County | 238 | 41.6% | 47.5% | 10.9% | 1966 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Adams County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Adams County, both outside Pennsylvania so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside PA (254 bridges here).
- Manatee County, FL · 254 bridges
- Ottawa County, MI · 254 bridges
- Wagoner County, OK · 254 bridges
- Coos County, OR · 254 bridges
Similar average build year
Nearest mean year-built outside PA (1972 here).
- Santa Clara County, CA · avg 1972 · 964 bridges
- Madison County, AL · avg 1972 · 710 bridges
- Kern County, CA · avg 1972 · 668 bridges
- Middlesex County, NJ · avg 1972 · 563 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (145)
PA 234; SR 0234
FairOver: US 15; SR 0015
HEIDLERSBURG, Adams, PA
Built 1968 Load: 29.9 t ADT: 6,496
SR 2007
FairOver: SO BRANCH CONEWAGO CREEK
EDGE GROVE, Adams, PA
Built 1980 Load: 29.9 t ADT: 567
WHITE CHURCH ROAD
FairOver: LITTLES RUN
3.5 SE GBURG/LITTLES RUN, Adams, PA
Built 1978 Load: 29.9 t ADT: 300
SR 3006; BARLOW RD
FairOver: US 15 SB; SR 0015
S OF GETTYSBURGG, Adams, PA
Built 1963 Load: 30.8 t ADT: 587
SR 3010
FairOver: MIDDLE CREEK
3 MI. S.E. OF FAIRFIELD, Adams, PA
Built 1971 Load: 30.8 t ADT: 447
GOOD INTENT ROAD
FairOver: ROCK CREEK
2.5 N.GETTSBRG/ROCK CREEK, Adams, PA
Built 1963 Load: 30.8 t ADT: 100
MT. HOPE ROAD
FairOver: SWAMP CREEK
1 E.MT.HOPE/SWAMP CREEK, Adams, PA
Built 1939 Load: 30.8 t ADT: 100
PUMPING STATION RD
FairOver: MARSH CREEK
3.5 MI.S.W. OF GETTYSBURG, Adams, PA
Built 1963 Load: 31.8 t ADT: 569
RAILROAD LANE
FairOver: LITTLE MARSH CREEK
L.MARSH CRK.2 SW MCKNTWN, Adams, PA
Built 1962 Load: 31.8 t ADT: 75
PA 16; SR 0016
FairOver: MINEY BRANCH OF TOMS CRK
SW OF GETTYSBURG, Adams, PA
Built 1939 Load: 32.7 t ADT: 6,506
PA 194; SR 0194
FairOver: SOUTH BR OF CONEWAGO
NE OF LITTLESTOWN, Adams, PA
Built 1956 Load: 32.7 t ADT: 12,896
SR 1005 Latimore r
FairOver: BERMUDIAN CREEK
PONDTOWN MILL, Adams, PA
Built 1910 Load: 32.7 t ADT: 124
SR 3014
FairOver: TOMS CREEK
.5 MI.W. OF IRON SPRG., Adams, PA
Built 1901 Load: 32.7 t ADT: 619
3021 JACKS MTN RD
FairOver: TOMS CREEK
1.5 MI. S.W. FAIRFIELD, Adams, PA
Built 1890 Load: 32.7 t ADT: 2,416
HOSTETTER ROAD
FairOver: SOUTH BR. CONEWAGO
1.5 MI.SW MCSHERRYSTOWN, Adams, PA
Built 1958 Load: 32.7 t ADT: 100
OLD RT. 15; T-602
FairOver: LATIMORE CREEK
2 NE YORK SPRG/LATIMOR CR, Adams, PA
Built 1920 Load: 32.7 t ADT: 375
CAMPGROUND ROAD
FairOver: HOSACK RUN
0.15 MI SW OF SR 233, Adams, PA
Built 1976 Load: 32.7 t ADT: 40
US 15 NB; SR 0015
FairOver: PA 116; SR 0116
US15 & PA 116 INTERCHANGE, Adams, PA
Built 1990 Load: 33.6 t ADT: 11,494
SR 2005
FairOver: WHITE RUN
3 MI. N. OF BONNEAUVILLE, Adams, PA
Built 1938 Load: 33.6 t ADT: 1,406
SR 2006
FairOver: SOUTH BR CONEWAGO CR
1 MI N MCSHERRYSTOWN, Adams, PA
Built 1963 Load: 34.5 t ADT: 4,603
SR 2014
FairOver: PINEY CREEK
1 MI. E. OF KINGSDALE, Adams, PA
Built 1963 Load: 34.5 t ADT: 771
SR 3011
FairOver: LITTLE MARSH CREEK
1 MI. N. OF ORTANNA, Adams, PA
Built 1967 Load: 34.5 t ADT: 2,288
SR 3017
FairOver: WILLOUGHBY RUN
NW OF GETTYSBURG, Adams, PA
Built 1955 Load: 34.5 t ADT: 1,633
SR 4008
FairOver: CONEWAGO CREEK
1 MI N OF ARENDTSVILLE, Adams, PA
Built 1957 Load: 34.5 t ADT: 992
HILLTOWN ROAD
FairOver: MARSH CREEK
1.5 E.CSHTWN/MARSH CREEK, Adams, PA
Built 1978 Load: 34.5 t ADT: 100
US 15 SB; SR 0015
FairOver: PA 116; SR 0116
2 MI. E. OF GETTYSBURG, Adams, PA
Built 1963 Load: 35.4 t ADT: 11,968
SR 1005
FairOver: LATIMORE CREEK
1 MI N OF LATIMORE, Adams, PA
Built 1950 Load: 35.4 t ADT: 454
SR 1013
FairOver: RED RUN
2 MI.N. OF EAST BERLIN, Adams, PA
Built 1943 Load: 35.4 t ADT: 158
SR 1017
FairOver: TRIB OF CONEWAGO CREEK
2.5 MI N OF HUNTERSTOWN, Adams, PA
Built 1963 Load: 35.4 t ADT: 306
SR 1019
FairOver: PINE RUN
N OF CROSS KEYS, Adams, PA
Built 1970 Load: 35.4 t ADT: 2,247
FOREST DRIVE
FairOver: PINE RUN
2 W ABBOTSTOWN/PINE RUN, Adams, PA
Built 1993 Load: 35.4 t ADT: 100
GUMSPRING ROAD
FairOver: TOMS CREEK
3.5 MI.SW OF FAIRFIELD, Adams, PA
Built 1967 Load: 35.4 t ADT: 100
US 15 SB; SR 0015
FairOver: MIDDLE CREEK
1.25 MI.N. OF MD.LINE, Adams, PA
Built 1963 Load: 36.3 t ADT: 8,603
US 30; SR 0030
FairOver: MARSH CREEK
0.5 MI.W. OF CASHTOWN, Adams, PA
Built 1948 Load: 36.3 t ADT: 9,429
SR 2006
FairOver: SHOVELSBURG RUN
2 MI. N. CENTENNIAL, Adams, PA
Built 1938 Load: 36.3 t ADT: 2,757
SR 2016
FairOver: STERNERS CREEK
2 MI. S. OF BRUSHTOWN, Adams, PA
Built 1977 Load: 36.3 t ADT: 457
LOBAUGH ROAD
FairOver: BERMUDIAN CREEK
1.5 SE GRDNS/BERMUDN CREK, Adams, PA
Built 1976 Load: 36.3 t ADT: 200
OLD WAYNESBORO RD
FairOver: MINEY BRANCH
2 E GLADHILL/MINEY BRANCH, Adams, PA
Built 1926 Load: 36.3 t ADT: 100
MARKLE RUN ROAD
FairOver: MARKLE RUN
2 SW E.BERLIN/MARKLE RUN, Adams, PA
Built 1970 Load: 36.3 t ADT: 100
SR 1009
FairOver: BERMUDIAN CREEK
2 MI. N.E. OF HEIDLERSBRG, Adams, PA
Built 2011 Load: 36.3 t ADT: 420
PA 34; SR 0034
FairOver: TRIB TO QUAKER RUN
2.5 MI.N. OF BIGLERVILLE, Adams, PA
Built 1932 Load: 37.2 t ADT: 4,598
BONNERS HILL ROAD
FairOver: TRIB. TO LATIMORE CREEK
1.2 MILE S.E. LATIMORE, Adams, PA
Built 2001 Load: 37.2 t ADT: 50
SR 3003
FairOver: ROCK CREEK
2 1/2 MI.N.E. GETTYSBURG, Adams, PA
Built 1934 Load: 37.3 t ADT: 1,118
PA 16; SR 0016
FairOver: MINEY BRANCH
SW OF GETTYSBURG, Adams, PA
Built 1952 Load: 38.1 t ADT: 6,506
SR 1015
FairOver: SWIFT RUN
1 MI. S.E. OF NEW CHESTER, Adams, PA
Built 1940 Load: 38.1 t ADT: 1,832
ROBERTS ROAD
FairOver: ALLOWAY CREEK
1.4NW LITTLESTOWN/ALLOWCK, Adams, PA
Built 2021 Load: 38.9 t ADT: 75
PA 116; SR 0116
FairOver: PLUM CREEK
W OF MCSHERRYSTOWN, Adams, PA
Built 1912 Load: 39.0 t ADT: 9,996
SR 1005
FairOver: MUD CREEK
3MI SE OF YORK SPRINGS, Adams, PA
Built 1932 Load: 39.0 t ADT: 1,077
SR 1015
FairOver: LITTLE CONEWAGO CREEK
2 MI SE NEW CHESTER, Adams, PA
Built 1940 Load: 39.0 t ADT: 1,832
SR 2035
FairOver: ROCK CREEK
2 MI.S. OF GETTYSBURG, Adams, PA
Built 1942 Load: 39.0 t ADT: 5,593
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.