US Bridges

N. Grantham Road over Stony Run

Fair

York County, Pennsylvania · 1.3E N. Grantham Rd/Stony · Structure no. 000000000038174

Built
1917
108 years old
Condition
Fair
inspected October 2024
Type
Arch - Deck
Concrete
Length
41 ft
1 main span
Daily traffic
455
2023 count
Owner
County
County Highway Agency

About this bridge

N. Grantham Road over Stony Run is a concrete arch - deck carrying N. Grantham Road over Stony Run in York County, Pennsylvania. It was built in 1917, so it is 108 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 455 vehicles a day, roughly 5% of them trucks, projected to reach 1,000 by 2032. The structure is 41 ft (12.5 m) long and 17 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesN. Grantham Road
CrossesStony Run
Location1.3E N. Grantham Rd/Stony
RouteCity Street 0
CountyYork County
StatePennsylvania
Coordinates40.15108, -76.98562
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length41 ft (12.5 m)
Longest span41 ft (12.5 m)
Deck width17 ft (5.2 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic455 (2023)
Projected traffic1,000 by 2032
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$64,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N. Grantham Road over Stony Run built?

It was built in 1917, making it 108 years old in 2025.

What condition is N. Grantham Road over Stony Run 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 October 2024.

How much traffic does N. Grantham Road over Stony Run carry?

About 455 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is N. Grantham Road over Stony Run?

The structure is 41 ft (12.5 m) long with a longest span of 41 ft (12.5 m) and a deck 17 ft wide.

Who owns N. Grantham Road over Stony Run?

It is owned by the County Highway Agency.