US Bridges

Norbeck Road over Nursery Run

Good

Montgomery County, Maryland · 0.98 Miles East of Md 182 · Structure no. 200000M-0307010

Built
2002
23 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
2 main spans
Daily traffic
18,960
2022 count
Owner
County
County Highway Agency

About this bridge

Norbeck Road over Nursery Run is a steel continuous stringer/multi-beam or girder carrying Norbeck Road over Nursery Run in Montgomery County, Maryland. It was built in 2002, so it is 23 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 18,960 vehicles a day, roughly 5% of them trucks, projected to reach 26,700 by 2044. The structure is 175 ft (53.3 m) long and 49 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesNorbeck Road
CrossesNursery Run
Location0.98 Miles East of Md 182
RouteCounty Highway 7445
Coordinates39.12024, -77.01716
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating72 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length175 ft (53.3 m)
Longest span85 ft (25.9 m)
Deck width49 ft (14.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,960 (2022)
Projected traffic26,700 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Norbeck Road over Nursery Run built?

It was built in 2002, making it 23 years old in 2025.

What condition is Norbeck Road over Nursery Run 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 2024.

How much traffic does Norbeck Road over Nursery Run carry?

About 18,960 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Norbeck Road over Nursery Run?

The structure is 175 ft (53.3 m) long with a longest span of 85 ft (25.9 m) and a deck 49 ft wide.

Who owns Norbeck Road over Nursery Run?

It is owned by the County Highway Agency.