US Bridges

Research Road over Beaver Dam Creek

Fair

Prince George's County, Maryland · Capital Beltway to Exit 2 · Structure no. 2001002P0000000

Built
1966
59 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
600
2005 count
Owner
Unknown

About this bridge

Research Road over Beaver Dam Creek is a steel stringer/multi-beam or girder carrying Research Road over Beaver Dam Creek in Prince George's County, Maryland. It was built in 1966, so it is 59 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 600 vehicles a day, roughly 6% of them trucks, projected to reach 660 by 2025. The structure is 63 ft (19.2 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesResearch Road
CrossesBeaver Dam Creek
LocationCapital Beltway to Exit 2
RouteFederal Lands Road 60
Coordinates39.02361, -76.87822
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating63.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length63 ft (19.2 m)
Longest span60 ft (18.3 m)
Deck width29 ft (8.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2005)
Projected traffic660 by 2025
Trucks6%
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

OwnerNot reported
Maintained byNot reported
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$840,000 (2017 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Research Road over Beaver Dam Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Research Road over Beaver Dam Creek 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 2024.

How much traffic does Research Road over Beaver Dam Creek carry?

About 600 vehicles per day (2005 count), of which roughly 6% are trucks.

How long is Research Road over Beaver Dam Creek?

The structure is 63 ft (19.2 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.

Who owns Research Road over Beaver Dam Creek?

It is owned by the owner is not reported.