US Bridges

Mcintosh Road over Mcintosh Run

Good

St. Mary's County, Maryland · 0.9 MI N of Md RTE 245 · Structure no. 200000SM0002020

Built
1984
41 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
52 ft
Daily traffic
2,500
2004 count
Owner
County
County Highway Agency

About this bridge

Mcintosh Road over Mcintosh Run is a concrete culvert carrying Mcintosh Road over Mcintosh Run in St. Mary's County, Maryland. It was built in 1984, so it is 41 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 2,500 vehicles a day, roughly 5% of them trucks, projected to reach 4,500 by 2030. The structure is 52 ft (15.9 m) long and 40 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

No coordinates are recorded for this structure.

CarriesMcintosh Road
CrossesMcintosh Run
Location0.9 MI N of Md RTE 245
RouteCounty Highway 408
CountySt. Mary's County
StateMaryland
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans0
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span0 ft (0 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2004)
Projected traffic4,500 by 2030
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcintosh Road over Mcintosh Run built?

It was built in 1984, making it 41 years old in 2025.

What condition is Mcintosh Road over Mcintosh Run 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 September 2023.

How much traffic does Mcintosh Road over Mcintosh Run carry?

About 2,500 vehicles per day (2004 count), of which roughly 5% are trucks.

How long is Mcintosh Road over Mcintosh Run?

The structure is 52 ft (15.9 m) long and a deck 40 ft wide.

Who owns Mcintosh Road over Mcintosh Run?

It is owned by the County Highway Agency.