US Bridges

Glenbrook Drive over Hollow Creek

Fair

Frederick County, Maryland · 0.2 MI S of Middletwn Pwy · Structure no. 200000F-M-01030

Built
2004
21 years old
Condition
Fair
inspected June 2023
Type
Arch - Deck
Steel
Length
82 ft
2 main spans
Daily traffic
1,115
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Glenbrook Drive over Hollow Creek is a steel arch - deck carrying Glenbrook Drive over Hollow Creek in Frederick County, Maryland. It was built in 2004, so it is 21 years old, younger 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 1,115 vehicles a day, roughly 2% of them trucks, projected to reach 1,360 by 2041. The structure is 82 ft (25 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesGlenbrook Drive
CrossesHollow Creek
Location0.2 MI S of Middletwn Pwy
RouteCity Street 99
CountyFrederick County
StateMaryland
Coordinates39.43249, -77.52977
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length82 ft (25 m)
Longest span37 ft (11.3 m)
Deck width84 ft (25.6 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,115 (2021)
Projected traffic1,360 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Glenbrook Drive over Hollow Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Glenbrook Drive over Hollow 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 June 2023.

How much traffic does Glenbrook Drive over Hollow Creek carry?

About 1,115 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Glenbrook Drive over Hollow Creek?

The structure is 82 ft (25 m) long with a longest span of 37 ft (11.3 m) and a deck 84 ft wide.

Who owns Glenbrook Drive over Hollow Creek?

It is owned by the Town or Township Highway Agency.