US Bridges

29th Street over Trib to Northwest Branch

FairPosted for load

Prince George's County, Maryland · 0.05 MI S of Arundel Road · Structure no. 200000P-MO02040

Built
1962
63 years old
Condition
Fair
inspected January 2023
Type
Frame
Concrete Continuous
Length
42 ft
2 main spans
Daily traffic
249
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

29th Street over Trib to Northwest Branch is a concrete continuous frame carrying 29th Street over Trib to Northwest Branch in Prince George's County, Maryland. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.

It carries about 249 vehicles a day, roughly 5% of them trucks, projected to reach 304 by 2041. The structure is 42 ft (12.8 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries29th Street
CrossesTrib to Northwest Branch
Location0.05 MI S of Arundel Road
RouteCity Street 9290
Coordinates38.94554, -76.96799
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
Deck7 GoodSome minor problems.
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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating43 US tons
Inventory rating25 US tons

Structure

Structure typeFrame
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length42 ft (12.8 m)
Longest span20 ft (6.1 m)
Deck width37 ft (11.4 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic249 (2021)
Projected traffic304 by 2041
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 29th Street over Trib to Northwest Branch built?

It was built in 1962, making it 63 years old in 2025.

What condition is 29th Street over Trib to Northwest 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 January 2023.

How much traffic does 29th Street over Trib to Northwest Branch carry?

About 249 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is 29th Street over Trib to Northwest Branch?

The structure is 42 ft (12.8 m) long with a longest span of 20 ft (6.1 m) and a deck 37 ft wide.

Who owns 29th Street over Trib to Northwest Branch?

It is owned by the City or Municipal Highway Agency.