US Bridges

Md 28 over Br of Watts Branch

Good

Montgomery County, Maryland · 0.53 Mile West of Is 270 · Structure no. 100000150004020

Built
1988
37 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
41 ft
Daily traffic
47,601
2013 count
Owner
State
State Highway Agency

About this bridge

Md 28 over Br of Watts Branch is a concrete culvert carrying Md 28 over Br of Watts Branch in Montgomery County, Maryland. It was built in 1988, so it is 37 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 47,601 vehicles a day, roughly 8% of them trucks, projected to reach 57,558 by 2026. The structure is 41 ft (12.4 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesMd 28
CrossesBr of Watts Branch
Location0.53 Mile West of Is 270
RouteState Highway 28
Coordinates39.09108, -77.17998
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal 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 loadHS 20
Structure length41 ft (12.4 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,601 (2013)
Projected traffic57,558 by 2026
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Md 28 over Br of Watts Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Md 28 over Br of Watts Branch 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 Md 28 over Br of Watts Branch carry?

About 47,601 vehicles per day (2013 count), of which roughly 8% are trucks.

How long is Md 28 over Br of Watts Branch?

The structure is 41 ft (12.4 m) long with a longest span of 13 ft (4 m).

Who owns Md 28 over Br of Watts Branch?

It is owned by the State Highway Agency.