US Bridges

Is 495 over Brunett Avenue

Fair

Montgomery County, Maryland · 0.297 Mile West of US 29 · Structure no. 100000150134010

Built
1959
66 years old, rebuilt 2002
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
143 ft
3 main spans
Daily traffic
232,010
2009 count
Owner
State
State Highway Agency

About this bridge

Is 495 over Brunett Avenue is a steel stringer/multi-beam or girder carrying Is 495 over Brunett Avenue in Montgomery County, Maryland. It was built in 1959 and reconstructed in 2002, so it is 66 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 232,010 vehicles a day, roughly 12% of them trucks, projected to reach 233,070 by 2029. The structure is 143 ft (43.6 m) long and 151 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesIs 495
CrossesBrunett Avenue
Location0.297 Mile West of US 29
RouteInterstate 495
CountyMontgomery County
StateMaryland
Coordinates39.01642, -77.02206
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 rating110.1 US tons
Inventory rating63.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length143 ft (43.6 m)
Longest span68 ft (20.7 m)
Deck width151 ft (45.9 m)
Roadway width144 ft (44 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic232,010 (2009)
Projected traffic233,070 by 2029
Trucks12%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 495 over Brunett Avenue built?

It was built in 1959, making it 66 years old in 2025. It was reconstructed in 2002.

What condition is Is 495 over Brunett Avenue 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 June 2023.

How much traffic does Is 495 over Brunett Avenue carry?

About 232,010 vehicles per day (2009 count), of which roughly 12% are trucks.

How long is Is 495 over Brunett Avenue?

The structure is 143 ft (43.6 m) long with a longest span of 68 ft (20.7 m) and a deck 151 ft wide.

Who owns Is 495 over Brunett Avenue?

It is owned by the State Highway Agency.