US Bridges

Brock Bridge Road over Dorsey Run

Good

Anne Arundel County, Maryland · 1.2 Miles West of Md 175 · Structure no. 200000AA4011010

Built
1991
34 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
3,203
2021 count
Owner
County
County Highway Agency

About this bridge

Brock Bridge Road over Dorsey Run is a steel stringer/multi-beam or girder carrying Brock Bridge Road over Dorsey Run in Anne Arundel County, Maryland. It was built in 1991, so it is 34 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 3,203 vehicles a day, roughly 5% of them trucks, projected to reach 4,500 by 2045. The structure is 55 ft (16.8 m) long and 37 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesBrock Bridge Road
CrossesDorsey Run
Location1.2 Miles West of Md 175
RouteCounty Highway 957
CountyAnne Arundel County
StateMaryland
Coordinates39.13247, -76.78005
Functional classRural Minor 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89.9 US tons
Inventory rating54 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span50 ft (15.2 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,203 (2021)
Projected traffic4,500 by 2045
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Brock Bridge Road over Dorsey Run built?

It was built in 1991, making it 34 years old in 2025.

What condition is Brock Bridge Road over Dorsey 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 July 2024.

How much traffic does Brock Bridge Road over Dorsey Run carry?

About 3,203 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Brock Bridge Road over Dorsey Run?

The structure is 55 ft (16.8 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.

Who owns Brock Bridge Road over Dorsey Run?

It is owned by the County Highway Agency.