US Bridges

Md 382 over Rock Branch

Good

Prince George's County, Maryland · 0.48 MI S of Tanyard RD · Structure no. 100000160063010

Built
1999
26 years old
Condition
Good
inspected June 2024
Type
Slab
Prestressed Concrete Continuous
Length
58 ft
1 main span
Daily traffic
4,500
2009 count
Owner
State
State Highway Agency

About this bridge

Md 382 over Rock Branch is a prestressed concrete continuous slab carrying Md 382 over Rock Branch in Prince George's County, Maryland. It was built in 1999, so it is 26 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,500 vehicles a day, roughly 5% of them trucks, projected to reach 5,315 by 2026. The structure is 58 ft (17.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMd 382
CrossesRock Branch
Location0.48 MI S of Tanyard RD
RouteState Highway 382
Coordinates38.69096, -76.72591
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.5 US tons
Inventory rating38.5 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,500 (2009)
Projected traffic5,315 by 2026
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

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 382 over Rock Branch built?

It was built in 1999, making it 26 years old in 2025.

What condition is Md 382 over Rock 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 June 2024.

How much traffic does Md 382 over Rock Branch carry?

About 4,500 vehicles per day (2009 count), of which roughly 5% are trucks.

How long is Md 382 over Rock Branch?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 33 ft wide.

Who owns Md 382 over Rock Branch?

It is owned by the State Highway Agency.