US Bridges

Walker Mill Road over Southwest Branch

Fair

Prince George's County, Maryland · 0.18 MI W of Ritchie Road · Structure no. 200000P-0205010

Built
1969
56 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
96 ft
2 main spans
Daily traffic
30,734
2022 count
Owner
County
County Highway Agency

About this bridge

Walker Mill Road over Southwest Branch is a steel continuous stringer/multi-beam or girder carrying Walker Mill Road over Southwest Branch in Prince George's County, Maryland. It was built in 1969, so it is 56 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 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 30,734 vehicles a day, roughly 5% of them trucks, projected to reach 45,670 by 2042. The structure is 96 ft (29.3 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesWalker Mill Road
CrossesSouthwest Branch
Location0.18 MI W of Ritchie Road
RouteCounty Highway 367
CountyPrince George's County
StateMaryland
Coordinates38.87467, -76.86018
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.5 US tons
Inventory rating44.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length96 ft (29.3 m)
Longest span46 ft (14 m)
Deck width43 ft (13 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30,734 (2022)
Projected traffic45,670 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 Walker Mill Road over Southwest Branch built?

It was built in 1969, making it 56 years old in 2025.

What condition is Walker Mill Road over Southwest 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 April 2023.

How much traffic does Walker Mill Road over Southwest Branch carry?

About 30,734 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Walker Mill Road over Southwest Branch?

The structure is 96 ft (29.3 m) long with a longest span of 46 ft (14 m) and a deck 43 ft wide.

Who owns Walker Mill Road over Southwest Branch?

It is owned by the County Highway Agency.