US Bridges

Harris Street over Silver Creek

Fair

Northampton County, Pennsylvania · South of Water Street · Structure no. 000000000028926

Built
1954
71 years old, rebuilt 2013
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
200
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Harris Street over Silver Creek is a concrete slab carrying Harris Street over Silver Creek in Northampton County, Pennsylvania. It was built in 1954 and reconstructed in 2013, so it is 71 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 200 vehicles a day, roughly 1% of them trucks, projected to reach 1,323 by 2030. The structure is 22 ft (6.7 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesHarris Street
CrossesSilver Creek
LocationSouth of Water Street
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.57854, -75.34167
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating36.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2009)
Projected traffic1,323 by 2030
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$28,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Harris Street over Silver Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2013.

What condition is Harris Street over Silver 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 November 2023.

How much traffic does Harris Street over Silver Creek carry?

About 200 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Harris Street over Silver Creek?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 20 ft wide.

Who owns Harris Street over Silver Creek?

It is owned by the City or Municipal Highway Agency.