US Bridges

Is 270Y Hov Ramp over Is 270Y Median

Good

Montgomery County, Maryland · At Westlake Terrace · Structure no. 100000150182010

Built
2003
22 years old
Condition
Good
inspected October 2023
Type
Girder and Floorbeam System
Steel
Length
505 ft
6 main spans
Daily traffic
114,000
2000 count
Owner
State
State Highway Agency

About this bridge

Is 270Y Hov Ramp over Is 270Y Median is a steel girder and floorbeam system carrying Is 270Y Hov Ramp over Is 270Y Median in Montgomery County, Maryland. It was built in 2003, so it is 22 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 114,000 vehicles a day, roughly 6% of them trucks, projected to reach 177,000 by 2020. The structure is 505 ft (153.9 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 270Y Hov Ramp
CrossesIs 270Y Median
LocationAt Westlake Terrace
RouteInterstate 270Y
CountyMontgomery County
StateMaryland
Coordinates39.02233, -77.14029
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating52.5 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length505 ft (153.9 m)
Longest span90 ft (27.4 m)
Deck width46 ft (14 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic114,000 (2000)
Projected traffic177,000 by 2020
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 270Y Hov Ramp over Is 270Y Median built?

It was built in 2003, making it 22 years old in 2025.

What condition is Is 270Y Hov Ramp over Is 270Y Median in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Is 270Y Hov Ramp over Is 270Y Median carry?

About 114,000 vehicles per day (2000 count), of which roughly 6% are trucks.

How long is Is 270Y Hov Ramp over Is 270Y Median?

The structure is 505 ft (153.9 m) long with a longest span of 90 ft (27.4 m) and a deck 46 ft wide.

Who owns Is 270Y Hov Ramp over Is 270Y Median?

It is owned by the State Highway Agency.