US Bridges

T-429 over Pa Tpk (I-76)

Good

Cumberland County, Pennsylvania · Upper Frankford Twp · Structure no. 000000000046470

Built
2009
16 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete Continuous
Length
130 ft
2 main spans
Daily traffic
1,783
2010 count
Owner
Toll Authority
State Toll Authority

About this bridge

T-429 over Pa Tpk (I-76) is a prestressed concrete continuous box beam or girders - multiple carrying T-429 over Pa Tpk (I-76) in Cumberland County, Pennsylvania. It was built in 2009, so it is 16 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,783 vehicles a day, roughly 6% of them trucks, projected to reach 2,264 by 2030. The structure is 130 ft (39.6 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesT-429
CrossesPa Tpk (I-76)
LocationUpper Frankford Twp
RouteCity Street 0T429
CountyCumberland County
StatePennsylvania
Coordinates40.20167, -77.36167
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74 US tons
Inventory rating48 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length130 ft (39.6 m)
Longest span64 ft (19.5 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,783 (2010)
Projected traffic2,264 by 2030
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was T-429 over Pa Tpk (I-76) built?

It was built in 2009, making it 16 years old in 2025.

What condition is T-429 over Pa Tpk (I-76) in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does T-429 over Pa Tpk (I-76) carry?

About 1,783 vehicles per day (2010 count), of which roughly 6% are trucks.

How long is T-429 over Pa Tpk (I-76)?

The structure is 130 ft (39.6 m) long with a longest span of 64 ft (19.5 m) and a deck 33 ft wide.

Who owns T-429 over Pa Tpk (I-76)?

It is owned by the State Toll Authority.