US Bridges

Ramp NW to MD200WB over US29 Ramp Nb&se MD200

Good

Montgomery County, Maryland · 0.4 MI S of Briggs Chaney · Structure no. 300000M-V165020

Built
2011
14 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
404 ft
3 main spans
Daily traffic
2,294
2019 count
Owner
Toll Authority
State Toll Authority

About this bridge

Ramp NW to MD200WB over US29 Ramp Nb&se MD200 is a steel stringer/multi-beam or girder carrying Ramp NW to MD200WB over US29 Ramp Nb&se MD200 in Montgomery County, Maryland. It was built in 2011, so it is 14 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 2,294 vehicles a day, roughly 1% of them trucks, projected to reach 4,490 by 2041. The structure is 404 ft (123.2 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesRamp NW to MD200WB
CrossesUS29 Ramp Nb&se MD200
Location0.4 MI S of Briggs Chaney
RouteState Highway 0
CountyMontgomery County
StateMaryland
Coordinates39.07861, -76.95263
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.5 US tons
Inventory rating46.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length404 ft (123.2 m)
Longest span143 ft (43.6 m)
Deck width35 ft (10.7 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deck17 ft (5.2 m)

Traffic and service

Average daily traffic2,294 (2019)
Projected traffic4,490 by 2041
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed98.8 mi (159 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Ramp NW to MD200WB over US29 Ramp Nb&se MD200 built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ramp NW to MD200WB over US29 Ramp Nb&se MD200 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 September 2023.

How much traffic does Ramp NW to MD200WB over US29 Ramp Nb&se MD200 carry?

About 2,294 vehicles per day (2019 count), of which roughly 1% are trucks.

How long is Ramp NW to MD200WB over US29 Ramp Nb&se MD200?

The structure is 404 ft (123.2 m) long with a longest span of 143 ft (43.6 m) and a deck 35 ft wide.

Who owns Ramp NW to MD200WB over US29 Ramp Nb&se MD200?

It is owned by the State Toll Authority.