US Bridges

Portland Street over Coplay Creek

Good

Lehigh County, Pennsylvania · West of Quarry Street · Structure no. 000000000023467

Built
1991
34 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
27 ft
1 main span
Daily traffic
120
2009 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Portland Street over Coplay Creek is a prestressed concrete box beam or girders - multiple carrying Portland Street over Coplay Creek in Lehigh County, Pennsylvania. It was built in 1991, so it is 34 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 120 vehicles a day, roughly 1% of them trucks, projected to reach 290 by 2030. The structure is 27 ft (8.2 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesPortland Street
CrossesCoplay Creek
LocationWest of Quarry Street
RouteCity Street 0
Coordinates40.66978, -75.54968
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span25 ft (7.6 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2009)
Projected traffic290 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway 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 Portland Street over Coplay Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Portland Street over Coplay Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Portland Street over Coplay Creek carry?

About 120 vehicles per day (2009 count), of which roughly 1% are trucks.

How long is Portland Street over Coplay Creek?

The structure is 27 ft (8.2 m) long with a longest span of 25 ft (7.6 m) and a deck 44 ft wide.

Who owns Portland Street over Coplay Creek?

It is owned by the Town or Township Highway Agency.