US Bridges

State Farm RD T318 over Trib to Paxton Creek

Fair

Dauphin County, Pennsylvania · Witf Studio Paxton Crk · Structure no. 000000000014628

Built
1987
38 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
44 ft
1 main span
Daily traffic
750
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

State Farm RD T318 over Trib to Paxton Creek is a concrete slab carrying State Farm RD T318 over Trib to Paxton Creek in Dauphin County, Pennsylvania. It was built in 1987, so it is 38 years old, younger 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 750 vehicles a day, roughly 1% of them trucks, projected to reach 175 by 2039. The structure is 44 ft (13.4 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesState Farm RD T318
CrossesTrib to Paxton Creek
LocationWitf Studio Paxton Crk
RouteCity Street 0
CountyDauphin County
StatePennsylvania
Coordinates40.28961, -76.86141
Functional classRural Local

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span42 ft (12.8 m)
Deck width35 ft (10.7 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2019)
Projected traffic175 by 2039
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was State Farm RD T318 over Trib to Paxton Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is State Farm RD T318 over Trib to Paxton 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 May 2023.

How much traffic does State Farm RD T318 over Trib to Paxton Creek carry?

About 750 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is State Farm RD T318 over Trib to Paxton Creek?

The structure is 44 ft (13.4 m) long with a longest span of 42 ft (12.8 m) and a deck 35 ft wide.

Who owns State Farm RD T318 over Trib to Paxton Creek?

It is owned by the Town or Township Highway Agency.