US Bridges

SR 4029; T-505 over Conodoguinet Creek

Fair

Cumberland County, Pennsylvania · .5 Mi. N. of Carlisle · Structure no. 000000000013972

Built
1954
71 years old, rebuilt 2013
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
355 ft
4 main spans
Daily traffic
2,876
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4029; T-505 over Conodoguinet Creek is a steel continuous stringer/multi-beam or girder carrying SR 4029; T-505 over Conodoguinet Creek in Cumberland County, Pennsylvania. It was built in 1954 and reconstructed in 2013, so it is 71 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,876 vehicles a day, roughly 2% of them trucks, projected to reach 4,116 by 2032. The structure is 355 ft (108.2 m) long and 34 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 4029; T-505
CrossesConodoguinet Creek
Location.5 Mi. N. of Carlisle
RouteState Highway 0
CountyCumberland County
StatePennsylvania
Coordinates40.225, -77.19024
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.1 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length355 ft (108.2 m)
Longest span97 ft (29.6 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,876 (2024)
Projected traffic4,116 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.1 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 4029; T-505 over Conodoguinet Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2013.

What condition is SR 4029; T-505 over Conodoguinet Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does SR 4029; T-505 over Conodoguinet Creek carry?

About 2,876 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR 4029; T-505 over Conodoguinet Creek?

The structure is 355 ft (108.2 m) long with a longest span of 97 ft (29.6 m) and a deck 34 ft wide.

Who owns SR 4029; T-505 over Conodoguinet Creek?

It is owned by the State Highway Agency.