US Bridges

SR 2018 over Swatara Creek

Fair

Dauphin County, Pennsylvania · Hummelstown Boro · Structure no. 000000000014490

Built
1922
103 years old
Condition
Fair
inspected December 2022
Type
Arch - Deck
Concrete
Length
377 ft
4 main spans
Daily traffic
5,099
2023 count
Owner
State
State Highway Agency

About this bridge

SR 2018 over Swatara Creek is a concrete arch - deck carrying SR 2018 over Swatara Creek in Dauphin County, Pennsylvania. It was built in 1922, so it is 103 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 5,099 vehicles a day, roughly 3% of them trucks, projected to reach 8,700 by 2032. The structure is 377 ft (114.9 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSR 2018
CrossesSwatara Creek
LocationHummelstown Boro
RouteState Highway 0
CountyDauphin County
StatePennsylvania
Coordinates40.2627, -76.72615
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionDecember 2022
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal 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 spans4
Design loadH 15
Structure length377 ft (114.9 m)
Longest span90 ft (27.4 m)
Deck width32 ft (9.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,099 (2023)
Projected traffic8,700 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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$2.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 2018 over Swatara Creek built?

It was built in 1922, making it 103 years old in 2025.

What condition is SR 2018 over Swatara 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 December 2022.

How much traffic does SR 2018 over Swatara Creek carry?

About 5,099 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is SR 2018 over Swatara Creek?

The structure is 377 ft (114.9 m) long with a longest span of 90 ft (27.4 m) and a deck 32 ft wide.

Who owns SR 2018 over Swatara Creek?

It is owned by the State Highway Agency.