US Bridges

Stringtown Road over Little Seneca Creek Trib

Fair

Montgomery County, Maryland · 0.5 Miles NE of Md 355 · Structure no. 200000M-0221020

Built
2017
8 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
35 ft
Daily traffic
7,151
2022 count
Owner
County
County Highway Agency

About this bridge

Stringtown Road over Little Seneca Creek Trib is a concrete culvert carrying Stringtown Road over Little Seneca Creek Trib in Montgomery County, Maryland. It was built in 2017, so it is 8 years old, younger 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 6 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 7,151 vehicles a day, roughly 2% of them trucks, projected to reach 8,740 by 2044. The structure is 35 ft (10.8 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesStringtown Road
CrossesLittle Seneca Creek Trib
Location0.5 Miles NE of Md 355
RouteCounty Highway 15
CountyMontgomery County
StateMaryland
Coordinates39.23945, -77.27187
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadUnknown
Structure length35 ft (10.8 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,151 (2022)
Projected traffic8,740 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stringtown Road over Little Seneca Creek Trib built?

It was built in 2017, making it 8 years old in 2025.

What condition is Stringtown Road over Little Seneca Creek Trib 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 December 2023.

How much traffic does Stringtown Road over Little Seneca Creek Trib carry?

About 7,151 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Stringtown Road over Little Seneca Creek Trib?

The structure is 35 ft (10.8 m) long with a longest span of 18 ft (5.5 m).

Who owns Stringtown Road over Little Seneca Creek Trib?

It is owned by the County Highway Agency.