US Bridges

Nunnery Road over W Br Little Antietam Crk

Good

Franklin County, Pennsylvania · 1 W Tomstown/L Antietam · Structure no. 000000000017703

Built
1982
43 years old
Condition
Good
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
300
2009 count
Owner
County
County Highway Agency

About this bridge

Nunnery Road over W Br Little Antietam Crk is a prestressed concrete box beam or girders - multiple carrying Nunnery Road over W Br Little Antietam Crk in Franklin County, Pennsylvania. It was built in 1982, so it is 43 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 300 vehicles a day, projected to reach 420 by 2029. The structure is 51 ft (15.5 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNunnery Road
CrossesW Br Little Antietam Crk
Location1 W Tomstown/L Antietam
RouteCity Street 0
Coordinates39.78972, -77.57752
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 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 evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width31 ft (9.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2009)
Projected traffic420 by 2029
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nunnery Road over W Br Little Antietam Crk built?

It was built in 1982, making it 43 years old in 2025.

What condition is Nunnery Road over W Br Little Antietam Crk 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 November 2023.

How much traffic does Nunnery Road over W Br Little Antietam Crk carry?

About 300 vehicles per day (2009 count).

How long is Nunnery Road over W Br Little Antietam Crk?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 31 ft wide.

Who owns Nunnery Road over W Br Little Antietam Crk?

It is owned by the County Highway Agency.