US Bridges

PA-849;SR0849 over Juniata River

Fair

Dauphin County, Pennsylvania · N. Duncannon · Structure no. 000000000014418

Built
1922
103 years old
Condition
Fair
inspected October 2022
Type
Arch - Deck
Concrete
Length
650 ft
5 main spans
Daily traffic
4,301
2023 count
Owner
State
State Highway Agency

About this bridge

PA-849;SR0849 over Juniata River is a concrete arch - deck carrying PA-849;SR0849 over Juniata River 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 4,301 vehicles a day, roughly 6% of them trucks, projected to reach 6,880 by 2036. The structure is 650 ft (198.1 m) long and 29 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesPA-849;SR0849
CrossesJuniata River
LocationN. Duncannon
RouteState Highway 849
CountyDauphin County
StatePennsylvania
Coordinates40.40266, -77.01325
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 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 spans5
Design loadUnknown
Structure length650 ft (198.1 m)
Longest span130 ft (39.6 m)
Deck width29 ft (8.8 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,301 (2023)
Projected traffic6,880 by 2036
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was PA-849;SR0849 over Juniata River built?

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

What condition is PA-849;SR0849 over Juniata River 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 October 2022.

How much traffic does PA-849;SR0849 over Juniata River carry?

About 4,301 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is PA-849;SR0849 over Juniata River?

The structure is 650 ft (198.1 m) long with a longest span of 130 ft (39.6 m) and a deck 29 ft wide.

Who owns PA-849;SR0849 over Juniata River?

It is owned by the State Highway Agency.