US Bridges

Stoney Run Road over Stoney Run

Good

Anne Arundel County, Maryland · 0.1 MI W of Md RTE 170 · Structure no. 200000AA5011010

Built
1982
43 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
255 ft
2 main spans
Daily traffic
10,559
2021 count
Owner
County
County Highway Agency

About this bridge

Stoney Run Road over Stoney Run is a steel continuous stringer/multi-beam or girder carrying Stoney Run Road over Stoney Run in Anne Arundel County, Maryland. It was built in 1982, so it is 43 years old, younger than the Maryland average of 52.6 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 10,559 vehicles a day, roughly 5% of them trucks, projected to reach 19,500 by 2045. The structure is 255 ft (77.7 m) long and 65 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesStoney Run Road
CrossesStoney Run
Location0.1 MI W of Md RTE 170
RouteCounty Highway 573
Coordinates39.17872, -76.69636
Functional classUrban Other Principal Arterial

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 protection7 GoodSome minor problems.
Last inspectionJune 2024
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length255 ft (77.7 m)
Longest span125 ft (38.1 m)
Deck width65 ft (19.9 m)
Roadway width62 ft (18.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,559 (2021)
Projected traffic19,500 by 2045
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$15,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Stoney Run Road over Stoney Run built?

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

What condition is Stoney Run Road over Stoney Run 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 June 2024.

How much traffic does Stoney Run Road over Stoney Run carry?

About 10,559 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Stoney Run Road over Stoney Run?

The structure is 255 ft (77.7 m) long with a longest span of 125 ft (38.1 m) and a deck 65 ft wide.

Who owns Stoney Run Road over Stoney Run?

It is owned by the County Highway Agency.