US Bridges

Ridgefield Road over Long Quarter Branch

Fair

Baltimore County, Maryland · 0.30 MI E of Md 45 · Structure no. 200000B-0306020

Built
1955
70 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
715
2021 count
Owner
County
County Highway Agency

About this bridge

Ridgefield Road over Long Quarter Branch is a concrete culvert carrying Ridgefield Road over Long Quarter Branch in Baltimore County, Maryland. It was built in 1955, so it is 70 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 715 vehicles a day, roughly 5% of them trucks, projected to reach 1,530 by 2040. The structure is 20 ft (6.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRidgefield Road
CrossesLong Quarter Branch
Location0.30 MI E of Md 45
RouteCounty Highway 1012
CountyBaltimore County
StateMaryland
Coordinates39.41725, -76.60857
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46 US tons
Inventory rating27.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width52 ft (15.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic715 (2021)
Projected traffic1,530 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ridgefield Road over Long Quarter Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is Ridgefield Road over Long Quarter Branch 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 July 2023.

How much traffic does Ridgefield Road over Long Quarter Branch carry?

About 715 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Ridgefield Road over Long Quarter Branch?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m) and a deck 52 ft wide.

Who owns Ridgefield Road over Long Quarter Branch?

It is owned by the County Highway Agency.