US Bridges

Mill Creek Road over Little Lehigh Creek

Fair

Lehigh County, Pennsylvania · Schmoyers Mill Bridge · Structure no. 000000000023447

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
69 ft
1 main span
Daily traffic
500
2012 count
Owner
County
County Highway Agency

About this bridge

Mill Creek Road over Little Lehigh Creek is a prestressed concrete box beam or girders - multiple carrying Mill Creek Road over Little Lehigh Creek in Lehigh County, Pennsylvania. It was built in 1967, so it is 58 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 500 vehicles a day, roughly 5% of them trucks, projected to reach 1,000 by 2022. The structure is 69 ft (21 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMill Creek Road
CrossesLittle Lehigh Creek
LocationSchmoyers Mill Bridge
RouteCity Street 0
Coordinates40.53842, -75.57197
Functional classRural 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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating12 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span67 ft (20.4 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2012)
Projected traffic1,000 by 2022
Trucks5%
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 statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$348,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Creek Road over Little Lehigh Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is Mill Creek Road over Little Lehigh 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 Mill Creek Road over Little Lehigh Creek carry?

About 500 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Mill Creek Road over Little Lehigh Creek?

The structure is 69 ft (21 m) long with a longest span of 67 ft (20.4 m) and a deck 35 ft wide.

Who owns Mill Creek Road over Little Lehigh Creek?

It is owned by the County Highway Agency.