Bridge conditions in Dauphin County, Pennsylvania
448 inventoried bridges · 41 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
41 of the 448 bridges the federal inventory lists in Dauphin County are rated poor; the rest split 96 good and 311 fair.
- 41 of the 448 bridges in Dauphin County, Pennsylvania, are rated in poor condition (9.2%) in the 2025 National Bridge Inventory, as of .
- 96 bridges (21.4%) are rated good and 311 (69.4%) fair.
- The median Dauphin County bridge was built in 1972.
- The busiest poor-rated bridge is SR 0083; I-83 over Susq.river;r.r.lowther S (built 1960), carrying about 89,499 vehicles a day.
Good 21.4% · Fair 69.4% · Poor 9.2% of 448 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 0083; I-83 over Susq.river;r.r.lowther S | 1960 | 89,499 | Poor |
| US 22; SR 0022 over Susquehanna River | 1986 | 28,506 | Poor |
| Pa 230; SR 0230 over Asylum Run | 1950 | 22,619 | Poor |
| SR 3009 Paxton St over Norfolk Southern RR | 1929 | 18,893 | Poor |
| SR 3012 over Spring Creek | 1938 | 14,239 | Poor |
| SR 2019 S.Nyes Rd. over Beaver Creek | 1984 | 12,843 | Poor |
| SR 3012 West Spans over Susquehanna River (west) | 1928 | 11,556 | Poor |
| SR 3007 over Norfolk Southern | 1965 | 9,129 | Poor |
| Market Street over Paxton Creek | 1900 | 8,000 | Poor |
| SR 3009 over Fishing Creek | 1910 | 7,944 | Poor |
| 13TH Street over Norfolk Southern | 1965 | 7,500 | Poor |
| Pa 147; S.river Rd over Powells Creek | 1860 | 6,935 | Poor |
| SR 3024 Locust Ln. over Trib to Beaver Creek | 1959 | 6,558 | Poor |
| US 209; SR 0209 over Wiconisco Creek | 1974 | 5,740 | Poor |
| PA 147; Market st. over Shippen Run | 1920 | 4,055 | Poor |
| SR 2042;TWP Rd 337 over SR 3032 | 1976 | 3,003 | Poor |
| SR 4002 Luexumburg over Trib to Deep Creek | 1991 | 2,214 | Poor |
| Maclay St. /turnbk over Norfolk Southern RR | 1940 | 2,176 | Poor |
| SR 2012 over NS Railroad | 1917 | 2,042 | Poor |
| SR 2011 Bachville over Branch of Spring Creek | 1920 | 1,985 | Poor |
| Mulberry St Harri over Paxton Creek | 1960 | 1,500 | Poor |
| Mulberry Street over Paxton Creek | 1940 | 900 | Poor |
| Crums Mill Rd T432 over Paxton Creek | 1950 | 750 | Poor |
| SR 2005 Roundtop R over Iron Mine Run | 1934 | 696 | Poor |
| SR 4001 over Armstrong Creek | 1974 | 522 | Poor |
| SR 1007 over Wiconisco Creek | 1973 | 519 | Poor |
| Kohn Road T-431 over Paxton Creek | 1987 | 450 | Poor |
| SR 4013 over W.branch Rattling Creek | 1974 | 372 | Poor |
| SR 4013 over Rattling Creek | 1937 | 372 | Poor |
| SR 4013 over Rattling Creek | 1974 | 372 | Poor |
| SR 4013 over Rattling Creek | 1973 | 372 | Poor |
| SR 4002 Luxemburg over Pine Creek | 1860 | 320 | Poor |
| SR 4006 over Armstrong Creek | 1920 | 312 | Poor |
| Devonshire Heights over Manada Creek | 1980 | 300 | Poor |
| SR 1017 Honeymoon over Trib to Pine Creek | 1910 | 253 | Poor |
| Under State St-har over Paxton Creek | 1940 | 200 | Poor |
| Walnut St over Jonestown Road Harrisbur | 1914 | 200 | Poor |
| So.malta Rd. T-482 over Mahantango Creek | 1973 | 100 | Poor |
| West Cross Rd T535 over N Fork Powell Creek | 1976 | 75 | Poor |
| S. Meadow Ln. T471 over Manada Creek | 1930 | 50 | Poor |
| Deibler Gap T-474 over Mahantango Creek | 1900 | – | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-83; SR 0083 over Twp Rd 369 & Sprng Crk.r | 1953 | 91,219 | Fair |
| I-83; SR 0083 over Twp Rd 392 Peiffer Lane | 1994 | 91,219 | Fair |
| SR 0083; I-83 over Susq.river;r.r.lowther S | 1960 | 89,499 | Poor |
| I-83; SR 0083 over Pa 230;NS;RP B C;front | 1960 | 89,209 | Fair |
| I-83; SR 0083 over T-411; Londonderry Rd | 2021 | 84,491 | Good |
| I-83; SR 0083 over T-586; Megoulas Blvd. | 2021 | 84,491 | Good |
| I-83; SR 0083 over SR 3024; Locust Lane | 2021 | 84,491 | Good |
| I-83; SR 0083 over SR 3010 & 16TH. St. | 1961 | 81,885 | Fair |
| I-83; SR 0083 over 17TH St | 1961 | 81,885 | Fair |
| I-81; SR 0081 over Trib Paxton Creek | 1969 | 81,142 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Pennsylvania: Pennsylvania bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.