US Bridges

Browns Bridge Road over Patuxent River

Poor

Howard County, Maryland · 1.4 MI E of Md 650 · Structure no. 200000HO0021010

Built
1953
72 years old, rebuilt 1998
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
210 ft
3 main spans
Daily traffic
5,772
2000 count
Owner
County
County Highway Agency

About this bridge

Browns Bridge Road over Patuxent River is a steel stringer/multi-beam or girder carrying Browns Bridge Road over Patuxent River in Howard County, Maryland. It was built in 1953 and reconstructed in 1998, so it is 72 years old, older than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 5,772 vehicles a day, roughly 4% of them trucks, projected to reach 6,200 by 2015. The structure is 210 ft (64 m) long and 36 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesBrowns Bridge Road
CrossesPatuxent River
Location1.4 MI E of Md 650
RouteCounty Highway 0
Coordinates39.14604, -76.96265
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
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 rating73.5 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length210 ft (64 m)
Longest span80 ft (24.4 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,772 (2000)
Projected traffic6,200 by 2015
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Browns Bridge Road over Patuxent River built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1998.

What condition is Browns Bridge Road over Patuxent River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does Browns Bridge Road over Patuxent River carry?

About 5,772 vehicles per day (2000 count), of which roughly 4% are trucks.

How long is Browns Bridge Road over Patuxent River?

The structure is 210 ft (64 m) long with a longest span of 80 ft (24.4 m) and a deck 36 ft wide.

Who owns Browns Bridge Road over Patuxent River?

It is owned by the County Highway Agency.