US Bridges

Massachusetts Ave over Center Leg Innerloop I39

Fair

District of Columbia, District of Columbia · Mass. Ave. over Innerloop · Structure no. 1140(MASS AVE)

Built
1968
57 years old, rebuilt 2013
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
181 ft
2 main spans
Daily traffic
26,000
2007 count
Owner
State
State Highway Agency

About this bridge

Massachusetts Ave over Center Leg Innerloop I39 is a steel stringer/multi-beam or girder carrying Massachusetts Ave over Center Leg Innerloop I39 in District of Columbia, District of Columbia. It was built in 1968 and reconstructed in 2013, so it is 57 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 26,000 vehicles a day, roughly 3% of them trucks, projected to reach 27,500 by 2027. The structure is 181 ft (55.2 m) long and 222 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMassachusetts Ave
CrossesCenter Leg Innerloop I39
LocationMass. Ave. over Innerloop
RouteCity Street 0
CountyDistrict of Columbia
StateDistrict of Columbia
Coordinates38.89958, -77.01446
Functional classUrban Minor 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating67.6 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span92 ft (27.9 m)
Deck width222 ft (67.6 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,000 (2007)
Projected traffic27,500 by 2027
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Massachusetts Ave over Center Leg Innerloop I39 built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 2013.

What condition is Massachusetts Ave over Center Leg Innerloop I39 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 Massachusetts Ave over Center Leg Innerloop I39 carry?

About 26,000 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is Massachusetts Ave over Center Leg Innerloop I39?

The structure is 181 ft (55.2 m) long with a longest span of 92 ft (27.9 m) and a deck 222 ft wide.

Who owns Massachusetts Ave over Center Leg Innerloop I39?

It is owned by the State Highway Agency.