US Bridges

Front ST over Silver Creek

Fair

Northampton County, Pennsylvania · South of Water ST · Structure no. 000000000028925

Built
1937
88 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
26 ft
1 main span
Daily traffic
2,200
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Front ST over Silver Creek is a steel stringer/multi-beam or girder carrying Front ST over Silver Creek in Northampton County, Pennsylvania. It was built in 1937, so it is 88 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 6 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 2,200 vehicles a day, roughly 5% of them trucks, projected to reach 3,080 by 2019. The structure is 26 ft (7.9 m) long and 60 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFront ST
CrossesSilver Creek
LocationSouth of Water ST
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.57858, -75.34262
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83 US tons
Inventory rating50 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width60 ft (18.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2009)
Projected traffic3,080 by 2019
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$36,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Front ST over Silver Creek built?

It was built in 1937, making it 88 years old in 2025.

What condition is Front ST 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 September 2023.

How much traffic does Front ST over Silver Creek carry?

About 2,200 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Front ST over Silver Creek?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 60 ft wide.

Who owns Front ST over Silver Creek?

It is owned by the City or Municipal Highway Agency.