US Bridges

Walnut Street over Cedar Creek

PoorPosted for load

Lehigh County, Pennsylvania · ST Elmo ST & Reading Road · Structure no. 000000000023503

Built
1824
201 years old
Condition
Poor
inspected April 2024
Type
Arch - Deck
Masonry
Length
35 ft
2 main spans
Daily traffic
1,000
2010 count
Owner
County
County Highway Agency

About this bridge

Walnut Street over Cedar Creek is a masonry arch - deck carrying Walnut Street over Cedar Creek in Lehigh County, Pennsylvania. It was built in 1824, so it is 201 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,200 by 2030. The structure is 35 ft (10.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWalnut Street
CrossesCedar Creek
LocationST Elmo ST & Reading Road
RouteCity Street 0
Coordinates40.59375, -75.49879
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating24 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span14 ft (4.3 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2010)
Projected traffic1,200 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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$352,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Walnut Street over Cedar Creek built?

It was built in 1824, making it 201 years old in 2025.

What condition is Walnut Street over Cedar Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Walnut Street over Cedar Creek carry?

About 1,000 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Walnut Street over Cedar Creek?

The structure is 35 ft (10.7 m) long with a longest span of 14 ft (4.3 m) and a deck 24 ft wide.

Who owns Walnut Street over Cedar Creek?

It is owned by the County Highway Agency.