US Bridges

14th St. NB over Lane A-1 NB I-395

Fair

District of Columbia, District of Columbia · 14th ST over Lane A-1 · Structure no. 1134(OVER A-1)

Built
1969
56 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
144 ft
2 main spans
Daily traffic
40,000
2007 count
Owner
State
State Highway Agency

About this bridge

14th St. NB over Lane A-1 NB I-395 is a steel stringer/multi-beam or girder carrying 14th St. NB over Lane A-1 NB I-395 in District of Columbia, District of Columbia. It was built in 1969, so it is 56 years old, younger than the District of Columbia average of 63.7 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 40,000 vehicles a day, roughly 5% of them trucks, projected to reach 45,000 by 2027. The structure is 144 ft (43.9 m) long and 44 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries14th St. NB
CrossesLane A-1 NB I-395
Location14th ST over Lane A-1
RouteU.S. Route 1
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.87899, -77.03633
Functional classUrban Other Principal Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length144 ft (43.9 m)
Longest span73 ft (22.3 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,000 (2007)
Projected traffic45,000 by 2027
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was 14th St. NB over Lane A-1 NB I-395 built?

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

What condition is 14th St. NB over Lane A-1 NB I-395 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 February 2025.

How much traffic does 14th St. NB over Lane A-1 NB I-395 carry?

About 40,000 vehicles per day (2007 count), of which roughly 5% are trucks.

How long is 14th St. NB over Lane A-1 NB I-395?

The structure is 144 ft (43.9 m) long with a longest span of 73 ft (22.3 m) and a deck 44 ft wide.

Who owns 14th St. NB over Lane A-1 NB I-395?

It is owned by the State Highway Agency.