US Bridges

South Fifth Street over Trout Creek

Fair

Lehigh County, Pennsylvania · Near Susquehanna Street · Structure no. 000000000023494

Built
1913
112 years old, rebuilt 1995
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
2 main spans
Daily traffic
100
1980 count
Owner
City
City or Municipal Highway Agency

About this bridge

South Fifth Street over Trout Creek is a steel stringer/multi-beam or girder carrying South Fifth Street over Trout Creek in Lehigh County, Pennsylvania. It was built in 1913 and reconstructed in 1995, so it is 112 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 100 vehicles a day, roughly 1% of them trucks, projected to reach 400 by 2030. The structure is 41 ft (12.5 m) long and 51 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSouth Fifth Street
CrossesTrout Creek
LocationNear Susquehanna Street
RouteCity Street 7301
Coordinates40.58952, -75.46207
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80 US tons
Inventory rating48 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span19 ft (5.8 m)
Deck width51 ft (15.6 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (1980)
Projected traffic400 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$342,000
NavigationNo navigation control on waterway

Frequently asked questions

When was South Fifth Street over Trout Creek built?

It was built in 1913, making it 112 years old in 2025. It was reconstructed in 1995.

What condition is South Fifth Street over Trout 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 April 2024.

How much traffic does South Fifth Street over Trout Creek carry?

About 100 vehicles per day (1980 count), of which roughly 1% are trucks.

How long is South Fifth Street over Trout Creek?

The structure is 41 ft (12.5 m) long with a longest span of 19 ft (5.8 m) and a deck 51 ft wide.

Who owns South Fifth Street over Trout Creek?

It is owned by the City or Municipal Highway Agency.