US Bridges

T-310; Rdwy Turnbk over Shermans Creek

Fair

Perry County, Pennsylvania · Duncanon · Structure no. 000000000029633

Built
1930
95 years old
Condition
Fair
inspected March 2023
Type
Arch - Deck
Concrete
Length
272 ft
3 main spans
Daily traffic
442
2024 count
Owner
State
State Highway Agency

About this bridge

T-310; Rdwy Turnbk over Shermans Creek is a concrete arch - deck carrying T-310; Rdwy Turnbk over Shermans Creek in Perry County, Pennsylvania. It was built in 1930, so it is 95 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 5 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 442 vehicles a day, roughly 2% of them trucks, projected to reach 500 by 2032. The structure is 272 ft (82.9 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT-310; Rdwy Turnbk
CrossesShermans Creek
LocationDuncanon
RouteState Highway 0
CountyPerry County
StatePennsylvania
Coordinates40.38377, -77.03094
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length272 ft (82.9 m)
Longest span86 ft (26.2 m)
Deck width38 ft (11.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic442 (2024)
Projected traffic500 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T-310; Rdwy Turnbk over Shermans Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is T-310; Rdwy Turnbk over Shermans 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 March 2023.

How much traffic does T-310; Rdwy Turnbk over Shermans Creek carry?

About 442 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is T-310; Rdwy Turnbk over Shermans Creek?

The structure is 272 ft (82.9 m) long with a longest span of 86 ft (26.2 m) and a deck 38 ft wide.

Who owns T-310; Rdwy Turnbk over Shermans Creek?

It is owned by the State Highway Agency.