US Bridges

Norbeck RD (MD28) over Md 200 (icc)

Good

Montgomery County, Maryland · 4.1 MI West of Md 650 · Structure no. 300000M-V091010

Built
2010
15 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
298 ft
2 main spans
Daily traffic
18,475
2019 count
Owner
Toll Authority
State Toll Authority

About this bridge

Norbeck RD (MD28) over Md 200 (icc) is a steel continuous stringer/multi-beam or girder carrying Norbeck RD (MD28) over Md 200 (icc) in Montgomery County, Maryland. It was built in 2010, so it is 15 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 18,475 vehicles a day, roughly 2% of them trucks, projected to reach 22,996 by 2041. The structure is 298 ft (90.8 m) long and 50 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNorbeck RD (MD28)
CrossesMd 200 (icc)
Location4.1 MI West of Md 650
RouteState Highway 280
CountyMontgomery County
StateMaryland
Coordinates39.11221, -77.0607
Functional classUrban Other Principal Arterial

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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97 US tons
Inventory rating58 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length298 ft (90.8 m)
Longest span153 ft (46.6 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,475 (2019)
Projected traffic22,996 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free 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 Norbeck RD (MD28) over Md 200 (icc) built?

It was built in 2010, making it 15 years old in 2025.

What condition is Norbeck RD (MD28) over Md 200 (icc) 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 February 2024.

How much traffic does Norbeck RD (MD28) over Md 200 (icc) carry?

About 18,475 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Norbeck RD (MD28) over Md 200 (icc)?

The structure is 298 ft (90.8 m) long with a longest span of 153 ft (46.6 m) and a deck 50 ft wide.

Who owns Norbeck RD (MD28) over Md 200 (icc)?

It is owned by the State Toll Authority.