US Bridges

Is 495 over Cedar Lane

Fair

Montgomery County, Maryland · 0.65 Mile East of Md 355 · Structure no. 100000150122010

Built
1964
61 years old, rebuilt 1990
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
107 ft
3 main spans
Daily traffic
238,050
2009 count
Owner
State
State Highway Agency

About this bridge

Is 495 over Cedar Lane is a steel stringer/multi-beam or girder carrying Is 495 over Cedar Lane in Montgomery County, Maryland. It was built in 1964 and reconstructed in 1990, so it is 61 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 5 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 238,050 vehicles a day, roughly 8% of them trucks, projected to reach 357,075 by 2029. The structure is 107 ft (32.6 m) long and 164 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIs 495
CrossesCedar Lane
Location0.65 Mile East of Md 355
RouteInterstate 495
CountyMontgomery County
StateMaryland
Coordinates39.01123, -77.09144
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.4 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length107 ft (32.6 m)
Longest span54 ft (16.5 m)
Deck width164 ft (50 m)
Roadway width158 ft (48.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic238,050 (2009)
Projected traffic357,075 by 2029
Trucks8%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$386,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Is 495 over Cedar Lane built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1990.

What condition is Is 495 over Cedar Lane 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 May 2023.

How much traffic does Is 495 over Cedar Lane carry?

About 238,050 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Is 495 over Cedar Lane?

The structure is 107 ft (32.6 m) long with a longest span of 54 ft (16.5 m) and a deck 164 ft wide.

Who owns Is 495 over Cedar Lane?

It is owned by the State Highway Agency.