US Bridges

Hyattstown Mill Ro over Little Bennett Creek Tri

Fair

Montgomery County, Maryland · 0.12 Miles East of Md 355 · Structure no. 200000M-PK21010

Built
2006
19 years old
Condition
Fair
inspected September 2024
Type
Arch - Deck
Concrete
Length
26 ft
1 main span
Daily traffic
62
2022 count
Owner
Local
Local Park, Forest, or Reservation Agency

About this bridge

Hyattstown Mill Ro over Little Bennett Creek Tri is a concrete arch - deck carrying Hyattstown Mill Ro over Little Bennett Creek Tri in Montgomery County, Maryland. It was built in 2006, so it is 19 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 62 vehicles a day, roughly 1% of them trucks, projected to reach 124 by 2042. The structure is 26 ft (7.8 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHyattstown Mill Ro
CrossesLittle Bennett Creek Tri
Location0.12 Miles East of Md 355
RouteCounty Highway 9
Coordinates39.27983, -77.31284
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating89 US tons
Inventory rating53 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length26 ft (7.8 m)
Longest span24 ft (7.3 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2022)
Projected traffic124 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerLocal Park, Forest, or Reservation Agency
Maintained byLocal Park, Forest, or Reservation 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 Hyattstown Mill Ro over Little Bennett Creek Tri built?

It was built in 2006, making it 19 years old in 2025.

What condition is Hyattstown Mill Ro over Little Bennett Creek Tri 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 September 2024.

How much traffic does Hyattstown Mill Ro over Little Bennett Creek Tri carry?

About 62 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Hyattstown Mill Ro over Little Bennett Creek Tri?

The structure is 26 ft (7.8 m) long with a longest span of 24 ft (7.3 m) and a deck 16 ft wide.

Who owns Hyattstown Mill Ro over Little Bennett Creek Tri?

It is owned by the Local Park, Forest, or Reservation Agency.