US Bridges

T-480 over Kishacoquillas Creek

Poor

Mifflin County, Pennsylvania · 400FT West of LR44007 · Structure no. 000000000026633

Built
1973
52 years old
Condition
Poor
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

T-480 over Kishacoquillas Creek is a prestressed concrete box beam or girders - multiple carrying T-480 over Kishacoquillas Creek in Mifflin County, Pennsylvania. It was built in 1973, so it is 52 years old, younger 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.

It carries about 100 vehicles a day, projected to reach 128 by 2043. The structure is 92 ft (28 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesT-480
CrossesKishacoquillas Creek
Location400FT West of LR44007
RouteCity Street 0
Coordinates40.60194, -77.56021
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52 US tons
Inventory rating17 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length92 ft (28 m)
Longest span91 ft (27.7 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic128 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$21,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-480 over Kishacoquillas Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is T-480 over Kishacoquillas Creek 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 April 2023.

How much traffic does T-480 over Kishacoquillas Creek carry?

About 100 vehicles per day (2023 count).

How long is T-480 over Kishacoquillas Creek?

The structure is 92 ft (28 m) long with a longest span of 91 ft (27.7 m) and a deck 24 ft wide.

Who owns T-480 over Kishacoquillas Creek?

It is owned by the County Highway Agency.