US Bridges

Shorb Mill Road over Middle Creek

GoodPosted for load

Adams County, Pennsylvania · 2.5 SW Greenmt.Middle Crk · Structure no. 000000000000422

Built
1905
120 years old, rebuilt 2022
Condition
Good
inspected February 2024
Type
Truss - Thru
Steel
Length
86 ft
1 main span
Daily traffic
25
2020 count
Owner
County
County Highway Agency

About this bridge

Shorb Mill Road over Middle Creek is a steel truss - thru carrying Shorb Mill Road over Middle Creek in Adams County, Pennsylvania. It was built in 1905 and reconstructed in 2022, so it is 120 years old, older 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 25 by 2040. The structure is 86 ft (26.2 m) long and 14 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesShorb Mill Road
CrossesMiddle Creek
Location2.5 SW Greenmt.Middle Crk
RouteCity Street 0
CountyAdams County
StatePennsylvania
Coordinates39.7342, -77.29628
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31 US tons
Inventory rating18 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length86 ft (26.2 m)
Longest span82 ft (25 m)
Deck width14 ft (4.3 m)
Roadway width13 ft (3.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2020)
Projected traffic25 by 2040
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$583,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Shorb Mill Road over Middle Creek built?

It was built in 1905, making it 120 years old in 2025. It was reconstructed in 2022.

What condition is Shorb Mill Road over Middle 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 February 2024.

How much traffic does Shorb Mill Road over Middle Creek carry?

About 25 vehicles per day (2020 count).

How long is Shorb Mill Road over Middle Creek?

The structure is 86 ft (26.2 m) long with a longest span of 82 ft (25 m) and a deck 14 ft wide.

Who owns Shorb Mill Road over Middle Creek?

It is owned by the County Highway Agency.