US Bridges

Forest School Road over Middle Creek

Good

Frederick County, Maryland · At Brandenburg Hollow RD · Structure no. 200000F-0611030

Built
1982
43 years old
Condition
Good
inspected April 2024
Type
Culvert
Steel
Length
28 ft
Daily traffic
125
2024 count
Owner
County
County Highway Agency

About this bridge

Forest School Road over Middle Creek is a steel culvert carrying Forest School Road over Middle Creek 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 125 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2044. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesForest School Road
CrossesMiddle Creek
LocationAt Brandenburg Hollow RD
RouteCounty Highway 108
Coordinates39.59358, -77.54002
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 inspectionApril 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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating90.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans0
Design loadUnknown
Structure length28 ft (8.5 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 traffic125 (2024)
Projected traffic150 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Forest School Road over Middle Creek built?

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

What condition is Forest School Road over Middle Creek 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 April 2024.

How much traffic does Forest School Road over Middle Creek carry?

About 125 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Forest School Road over Middle Creek?

The structure is 28 ft (8.5 m) long.

Who owns Forest School Road over Middle Creek?

It is owned by the County Highway Agency.