US Bridges

Brown Road over Roaring Run

Poor

Carroll County, Maryland · 0.2 MI NE of Md 140 · Structure no. 200000CL0346030

Built
1985
40 years old
Condition
Poor
inspected June 2024
Type
Culvert
Steel
Length
36 ft
Daily traffic
395
2021 count
Owner
County
County Highway Agency

About this bridge

Brown Road over Roaring Run is a steel culvert carrying Brown Road over Roaring Run in Carroll County, Maryland. It was built in 1985, so it is 40 years old, younger 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 395 vehicles a day, roughly 8% of them trucks, projected to reach 650 by 2041. The structure is 36 ft (11 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBrown Road
CrossesRoaring Run
Location0.2 MI NE of Md 140
RouteCounty Highway 482
CountyCarroll County
StateMaryland
Coordinates39.5185, -76.89755
Functional classUrban Local

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating95.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length36 ft (11 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic395 (2021)
Projected traffic650 by 2041
Trucks8%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$75,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Brown Road over Roaring Run built?

It was built in 1985, making it 40 years old in 2025.

What condition is Brown Road over Roaring Run 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 June 2024.

How much traffic does Brown Road over Roaring Run carry?

About 395 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Brown Road over Roaring Run?

The structure is 36 ft (11 m) long with a longest span of 7 ft (2.1 m).

Who owns Brown Road over Roaring Run?

It is owned by the County Highway Agency.