US Bridges

Sycamore Drive over Asylum Run

Fair

Dauphin County, Pennsylvania · Dgs Annex · Structure no. 000000000014757

Built
1920
105 years old, rebuilt 1995
Condition
Fair
inspected May 2023
Type
Slab
Prestressed Concrete
Length
23 ft
1 main span
Daily traffic
50
2010 count
Owner
State
Other State Agency

About this bridge

Sycamore Drive over Asylum Run is a prestressed concrete slab carrying Sycamore Drive over Asylum Run in Dauphin County, Pennsylvania. It was built in 1920 and reconstructed in 1995, so it is 105 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 50 vehicles a day, projected to reach 75 by 2030. The structure is 23 ft (7 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSycamore Drive
CrossesAsylum Run
LocationDgs Annex
RouteState Lands Road 0
CountyDauphin County
StatePennsylvania
Coordinates40.28363, -76.87188
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2010)
Projected traffic75 by 2030
Trucks—
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

OwnerOther State Agency
Maintained byOther State 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 Sycamore Drive over Asylum Run built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1995.

What condition is Sycamore Drive over Asylum Run 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 Sycamore Drive over Asylum Run carry?

About 50 vehicles per day (2010 count).

How long is Sycamore Drive over Asylum Run?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 28 ft wide.

Who owns Sycamore Drive over Asylum Run?

It is owned by the Other State Agency.