US Bridges

Mt. Tabor Road over Grindstone Run

Good

Frederick County, Maryland · At Monument RD Intersectn · Structure no. 200000F-1611030

Built
1982
43 years old
Condition
Good
inspected May 2024
Type
Culvert
Steel
Length
30 ft
Daily traffic
304
2024 count
Owner
County
County Highway Agency

About this bridge

Mt. Tabor Road over Grindstone Run is a steel culvert carrying Mt. Tabor Road over Grindstone Run in Frederick County, Maryland. It was built in 1982, so it is 43 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 304 vehicles a day, roughly 10% of them trucks, projected to reach 366 by 2044. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMt. Tabor Road
CrossesGrindstone Run
LocationAt Monument RD Intersectn
RouteCounty Highway 251
Coordinates39.50859, -77.58481
Functional classRural Minor 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating99 US tons
Inventory rating74 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span0 ft (0 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic304 (2024)
Projected traffic366 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mt. Tabor Road over Grindstone Run built?

It was built in 1982, making it 43 years old in 2025.

What condition is Mt. Tabor Road over Grindstone 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 May 2024.

How much traffic does Mt. Tabor Road over Grindstone Run carry?

About 304 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Mt. Tabor Road over Grindstone Run?

The structure is 30 ft (9.1 m) long.

Who owns Mt. Tabor Road over Grindstone Run?

It is owned by the County Highway Agency.