US Bridges

Provincial Parkway over Flat Run

Fair

Frederick County, Maryland · At N Seton Ave Intersectn · Structure no. 200000F-E-01010

Built
1991
34 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Concrete
Length
26 ft
1 main span
Daily traffic
953
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Provincial Parkway over Flat Run is a concrete arch - deck carrying Provincial Parkway over Flat Run in Frederick County, Maryland. It was built in 1991, so it is 34 years old, younger 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 953 vehicles a day, roughly 1% of them trucks, projected to reach 1,165 by 2043. The structure is 26 ft (7.9 m) long and 89 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesProvincial Parkway
CrossesFlat Run
LocationAt N Seton Ave Intersectn
RouteCity Street 53
CountyFrederick County
StateMaryland
Coordinates39.70819, -77.32243
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.5 US tons
Inventory rating48.5 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width89 ft (27 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic953 (2023)
Projected traffic1,165 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Provincial Parkway over Flat Run built?

It was built in 1991, making it 34 years old in 2025.

What condition is Provincial Parkway over Flat Run 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 2023.

How much traffic does Provincial Parkway over Flat Run carry?

About 953 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Provincial Parkway over Flat Run?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 89 ft wide.

Who owns Provincial Parkway over Flat Run?

It is owned by the Town or Township Highway Agency.