US Bridges

Md 193 over Sligo Creek

Fair

Montgomery County, Maryland · 1.26 Miles East of Md 97 · Structure no. 100000150032010

Built
1932
93 years old, rebuilt 1961
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
28,580
2009 count
Owner
State
State Highway Agency

About this bridge

Md 193 over Sligo Creek is a concrete culvert carrying Md 193 over Sligo Creek in Montgomery County, Maryland. It was built in 1932 and reconstructed in 1961, so it is 93 years old, older 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 28,580 vehicles a day, roughly 8% of them trucks, projected to reach 36,818 by 2026. The structure is 25 ft (7.6 m) long and 123 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesMd 193
CrossesSligo Creek
Location1.26 Miles East of Md 97
RouteState Highway 193
Coordinates39.03654, -77.03097
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span11 ft (3.4 m)
Deck width123 ft (37.6 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,580 (2009)
Projected traffic36,818 by 2026
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

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 193 over Sligo Creek built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1961.

What condition is Md 193 over Sligo Creek 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 April 2024.

How much traffic does Md 193 over Sligo Creek carry?

About 28,580 vehicles per day (2009 count), of which roughly 8% are trucks.

How long is Md 193 over Sligo Creek?

The structure is 25 ft (7.6 m) long with a longest span of 11 ft (3.4 m) and a deck 123 ft wide.

Who owns Md 193 over Sligo Creek?

It is owned by the State Highway Agency.