US Bridges

Cavanaugh Drive over Piney Branch

Fair

Montgomery County, Maryland · 0.3MI E of Shady Grove RD · Structure no. 200000M-0523030

Built
1993
32 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
31 ft
Daily traffic
3,929
2024 count
Owner
County
County Highway Agency

About this bridge

Cavanaugh Drive over Piney Branch is a steel culvert carrying Cavanaugh Drive over Piney Branch in Montgomery County, Maryland. It was built in 1993, so it is 32 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 3,929 vehicles a day, roughly 5% of them trucks, projected to reach 5,292 by 2044. The structure is 31 ft (9.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCavanaugh Drive
CrossesPiney Branch
Location0.3MI E of Shady Grove RD
RouteCounty Highway 0
CountyMontgomery County
StateMaryland
Coordinates39.07986, -77.21281
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,929 (2024)
Projected traffic5,292 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 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 Cavanaugh Drive over Piney Branch built?

It was built in 1993, making it 32 years old in 2025.

What condition is Cavanaugh Drive over Piney Branch 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 March 2024.

How much traffic does Cavanaugh Drive over Piney Branch carry?

About 3,929 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Cavanaugh Drive over Piney Branch?

The structure is 31 ft (9.4 m) long with a longest span of 8 ft (2.4 m).

Who owns Cavanaugh Drive over Piney Branch?

It is owned by the County Highway Agency.