US Bridges

Crofton Hill Lane over Watts Branch Tributary

Fair

Montgomery County, Maryland · 0.1 Miles South of Md 28 · Structure no. 200000M-R-13010

Built
1990
35 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
300
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Crofton Hill Lane over Watts Branch Tributary is a steel stringer/multi-beam or girder carrying Crofton Hill Lane over Watts Branch Tributary in Montgomery County, Maryland. It was built in 1990, so it is 35 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 300 vehicles a day, roughly 3% of them trucks, projected to reach 340 by 2044. The structure is 41 ft (12.5 m) long and 43 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesCrofton Hill Lane
CrossesWatts Branch Tributary
Location0.1 Miles South of Md 28
RouteCity Street 815
CountyMontgomery County
StateMaryland
Coordinates39.09056, -77.17957
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span37 ft (11.3 m)
Deck width43 ft (13 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic340 by 2044
Trucks3%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Crofton Hill Lane over Watts Branch Tributary built?

It was built in 1990, making it 35 years old in 2025.

What condition is Crofton Hill Lane over Watts Branch Tributary 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 August 2024.

How much traffic does Crofton Hill Lane over Watts Branch Tributary carry?

About 300 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Crofton Hill Lane over Watts Branch Tributary?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 43 ft wide.

Who owns Crofton Hill Lane over Watts Branch Tributary?

It is owned by the City or Municipal Highway Agency.