US Bridges

Is 270 Nbr over Br of Little Bennett Crk

Fair

Montgomery County, Maryland · 0.32 Mile South of Md 109 · Structure no. 100000150072020

Built
1952
73 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
28 ft
Daily traffic
94,940
2009 count
Owner
State
State Highway Agency

About this bridge

Is 270 Nbr over Br of Little Bennett Crk is a concrete culvert carrying Is 270 Nbr over Br of Little Bennett Crk in Montgomery County, Maryland. It was built in 1952, so it is 73 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.

It carries about 94,940 vehicles a day, roughly 8% of them trucks, projected to reach 105,333 by 2026. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 270 Nbr
CrossesBr of Little Bennett Crk
Location0.32 Mile South of Md 109
RouteInterstate 270
CountyMontgomery County
StateMaryland
Coordinates39.27433, -77.31957
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadH 20
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic94,940 (2009)
Projected traffic105,333 by 2026
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 270 Nbr over Br of Little Bennett Crk built?

It was built in 1952, making it 73 years old in 2025.

What condition is Is 270 Nbr over Br of Little Bennett Crk 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 August 2024.

How much traffic does Is 270 Nbr over Br of Little Bennett Crk carry?

About 94,940 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 270 Nbr over Br of Little Bennett Crk?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Is 270 Nbr over Br of Little Bennett Crk?

It is owned by the State Highway Agency.