Bridge conditions in McKean County, Pennsylvania

226 inventoried bridges · 40 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

About one in 6 bridges in McKean County is rated in poor condition: 40 of 226 on the federal inventory, one of the higher shares in Pennsylvania.

40 of the 226 bridges in McKean County, Pennsylvania, are rated in poor condition (17.7%) in the 2025 National Bridge Inventory, as of August 20, 2026.
101 bridges (44.7%) are rated good and 85 (37.6%) fair.
The median McKean County bridge was built in 1987.
The busiest poor-rated bridge is SR 46-pa 46 over Tunungwant Creek (built 1973), carrying about 4,989 vehicles a day.

Good 44.7% · Fair 37.6% · Poor 17.7% of 226 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 46-pa 46 over Tunungwant Creek	1973	4,989	Poor
SR 4013 over Bolivar Run	1936	4,769	Poor
SR 6-us 6 over Iron Hollow Run	1921	2,049	Poor
Barbour St over Bennett Brook	1955	1,200	Poor
SR 246-pa 246 over Kendall Creek	1954	1,106	Poor
SR 646-pa 646 over Pennbrook Run	1930	1,044	Poor
Campus Drive over Bennett Brook	1955	1,000	Poor
on Tsr 405 over Fowler Brook	1941	805	Poor
Davis Street over W Br Tunungwant Creek	1959	800	Poor
SR 346-pa 346 over Willow Creek	1940	520	Poor
SR 1006 over Kings Run	1945	497	Poor
T-385 Valley Cross over Potato Creek	1888	450	Poor
Willard Avenue over Bennett Brook	1978	425	Poor
Arnold Avenue over Lillibridge Creek	1957	400	Poor
SR 46-pa 46 over Colegrove Brook	1927	395	Poor
T-389 Sartwell Rd over Newell Creek	1982	280	Poor
T-336 High Street over Minard Run	1931	250	Poor
Lincoln Drive over Lewis Run	1950	200	Poor
T-375 Crosby Cross over Potato Creek	1988	160	Poor
T615 Crookerhouse over W Br Tunungwant Creek	1910	150	Poor
T-499 Clarks Lane over W Br Tunungwant Creek	1955	150	Poor
Harrisburg Run Rd over Harrisburg Run	1920	150	Poor
SR 3002 over Two Mile Run	1941	128	Poor
SR 4011 over Bennett Brook	1940	100	Poor
T-462 Boss Ave over Bennett Brook	1955	100	Poor
T433 Barbertown Rd over King Run	1960	100	Poor
T-349 Bordell Rd over Cole Creek	1915	75	Poor
T-576 Bj Road over Foster Brook	1980	70	Poor
T-300 West Kane Rd over East Br Tionesta Creek	1960	50	Poor
T-470 Gardeau Road over Half Mile Run	1950	40	Poor
T-384 Brooklyn St over Knapp Creek	1890	40	Poor
Langley Drive over Minard Run	1997	35	Poor
T325 Marvindale Rd over Marvin Creek	1938	30	Poor
T-402 Cady Run Rd over Portage Creek	1908	25	Poor
SR 3003 over Lanigan Run	1948	23	Poor
T-374 Clark Street over S Br Knapp Creek	1955	20	Poor
North 4TH Street over Foster Brook	1980	10	Poor
T387 Berger Hollow over S Br Knapp Creek	1950	10	Poor
Fr 186 over S. Br. Kinzua Creek	1962	10	Poor
T-437 Delmar Road over Oswayo Creek	1908	–	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
SR 219-us 219 over SR 346 and SR 4013	1977	11,194	Fair
SR 219-us 219 over SR 4002	2003	9,406	Good
SR 219-us 219 over Sheppard Run	1992	8,523	Good
SR 219-us 219 over Mill St - B&p Railroad	2006	8,482	Good
SR 346-pa 346 over Tunungwant Creek	1997	8,402	Fair
SR 346-pa 346 over West Branch Tunungwant C	1905	7,876	Fair
on Tsr 601 over Foster Brook	1960	7,564	Fair
SR 4005 over Kendall Creek	2003	7,554	Good
on Foreman Street over Tunungwant Creek	1963	7,296	Fair
SR 219-us 219 over Mill St - B&p Railroad	2007	7,217	Good

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

Every bridge in McKean County → - all 226, busiest first, each with its own condition record.

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.