US Bridges

Md 109 over Br of Little Monocacy Ri

Good

Montgomery County, Maryland · 1.74 M S Ofcomus Road · Structure no. 100000150070020

Built
2003
22 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
27 ft
2 main spans
Daily traffic
1,732
2009 count
Owner
State
State Highway Agency

About this bridge

Md 109 over Br of Little Monocacy Ri is a concrete culvert carrying Md 109 over Br of Little Monocacy Ri in Montgomery County, Maryland. It was built in 2003, so it is 22 years old, younger than the Maryland average of 52.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,732 vehicles a day, roughly 8% of them trucks, projected to reach 1,882 by 2026. The structure is 27 ft (8.2 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesMd 109
CrossesBr of Little Monocacy Ri
Location1.74 M S Ofcomus Road
RouteState Highway 109
Coordinates39.2277, -77.3704
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,732 (2009)
Projected traffic1,882 by 2026
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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 Md 109 over Br of Little Monocacy Ri built?

It was built in 2003, making it 22 years old in 2025.

What condition is Md 109 over Br of Little Monocacy Ri in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2023.

How much traffic does Md 109 over Br of Little Monocacy Ri carry?

About 1,732 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 109 over Br of Little Monocacy Ri?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m) and a deck 30 ft wide.

Who owns Md 109 over Br of Little Monocacy Ri?

It is owned by the State Highway Agency.