US Bridges

Lyttonsville Place over Purple Line

Good

Montgomery County, Maryland · 1 Miles North of Md 410 · Structure no. 200000M-0081010

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
124 ft
1 main span
Daily traffic
8,542
2023 count
Owner
County
County Highway Agency

About this bridge

Lyttonsville Place over Purple Line is a prestressed concrete stringer/multi-beam or girder carrying Lyttonsville Place over Purple Line in Montgomery County, Maryland. It was built in 2019, so it is 6 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 8,542 vehicles a day, roughly 3% of them trucks, projected to reach 10,250 by 2043. The structure is 124 ft (37.8 m) long and 70 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesLyttonsville Place
CrossesPurple Line
Location1 Miles North of Md 410
RouteCounty Highway 3338
Coordinates39.00029, -77.05414
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating53.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length124 ft (37.8 m)
Longest span118 ft (36 m)
Deck width70 ft (21.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,542 (2023)
Projected traffic10,250 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lyttonsville Place over Purple Line built?

It was built in 2019, making it 6 years old in 2025.

What condition is Lyttonsville Place over Purple Line 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 August 2024.

How much traffic does Lyttonsville Place over Purple Line carry?

About 8,542 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Lyttonsville Place over Purple Line?

The structure is 124 ft (37.8 m) long with a longest span of 118 ft (36 m) and a deck 70 ft wide.

Who owns Lyttonsville Place over Purple Line?

It is owned by the County Highway Agency.