US Bridges

T-480 Old RTE 99 over Lamson Run Tributary

PoorPosted for load

Erie County, Pennsylvania · At S. Hill RD Intersect · Structure no. 000000000016452

Built
1913
112 years old, rebuilt 1941
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
25 ft
1 main span
Daily traffic
695
2013 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-480 Old RTE 99 over Lamson Run Tributary is a steel stringer/multi-beam or girder carrying T-480 Old RTE 99 over Lamson Run Tributary in Erie County, Pennsylvania. It was built in 1913 and reconstructed in 1941, so it is 112 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 695 vehicles a day, roughly 3% of them trucks, projected to reach 754 by 2033. The structure is 25 ft (7.6 m) long and 31 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesT-480 Old RTE 99
CrossesLamson Run Tributary
LocationAt S. Hill RD Intersect
RouteCity Street 0
Coordinates41.9804, -80.14388
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length25 ft (7.6 m)
Longest span22 ft (6.7 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic695 (2013)
Projected traffic754 by 2033
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-480 Old RTE 99 over Lamson Run Tributary built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1941.

What condition is T-480 Old RTE 99 over Lamson Run Tributary in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does T-480 Old RTE 99 over Lamson Run Tributary carry?

About 695 vehicles per day (2013 count), of which roughly 3% are trucks.

How long is T-480 Old RTE 99 over Lamson Run Tributary?

The structure is 25 ft (7.6 m) long with a longest span of 22 ft (6.7 m) and a deck 31 ft wide.

Who owns T-480 Old RTE 99 over Lamson Run Tributary?

It is owned by the Town or Township Highway Agency.