US Bridges

US 301 NB over Timothy Branch

Fair

Prince George's County, Maryland · 0.66 MI N of Charles CO · Structure no. 100000160057011

Built
1950
75 years old, rebuilt 1990
Condition
Fair
inspected June 2024
Type
Arch - Deck
Concrete
Length
55 ft
1 main span
Daily traffic
82,362
2009 count
Owner
State
State Highway Agency

About this bridge

US 301 NB over Timothy Branch is a concrete arch - deck carrying US 301 NB over Timothy Branch in Prince George's County, Maryland. It was built in 1950 and reconstructed in 1990, so it is 75 years old, older 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 82,362 vehicles a day, roughly 8% of them trucks, projected to reach 42,207 by 2026. The structure is 55 ft (16.8 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 301 NB
CrossesTimothy Branch
Location0.66 MI N of Charles CO
RouteU.S. Route 301
Coordinates38.66732, -76.87564
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length55 ft (16.8 m)
Longest span35 ft (10.7 m)
Deck width52 ft (15.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82,362 (2009)
Projected traffic42,207 by 2026
Trucks8%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 US 301 NB over Timothy Branch built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is US 301 NB over Timothy 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 June 2024.

How much traffic does US 301 NB over Timothy Branch carry?

About 82,362 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is US 301 NB over Timothy Branch?

The structure is 55 ft (16.8 m) long with a longest span of 35 ft (10.7 m) and a deck 52 ft wide.

Who owns US 301 NB over Timothy Branch?

It is owned by the State Highway Agency.