US Bridges

College Avenue over Carroll Creek Floodplain

Fair

Frederick County, Maryland · 0.2 MI North of Md 144 · Structure no. 200000F-F-21010

Built
1992
33 years old
Condition
Fair
inspected May 2024
Type
Arch - Deck
Concrete
Length
80 ft
3 main spans
Daily traffic
1,652
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

College Avenue over Carroll Creek Floodplain is a concrete arch - deck carrying College Avenue over Carroll Creek Floodplain in Frederick County, Maryland. It was built in 1992, so it is 33 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 1,652 vehicles a day, roughly 5% of them trucks, projected to reach 2,455 by 2039. The structure is 80 ft (24.4 m) long and 68 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCollege Avenue
CrossesCarroll Creek Floodplain
Location0.2 MI North of Md 144
RouteCity Street 390
CountyFrederick County
StateMaryland
Coordinates39.41559, -77.41821
Functional classUrban Local

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.
Last inspectionMay 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span24 ft (7.3 m)
Deck width68 ft (20.6 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,652 (2019)
Projected traffic2,455 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was College Avenue over Carroll Creek Floodplain built?

It was built in 1992, making it 33 years old in 2025.

What condition is College Avenue over Carroll Creek Floodplain 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 May 2024.

How much traffic does College Avenue over Carroll Creek Floodplain carry?

About 1,652 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is College Avenue over Carroll Creek Floodplain?

The structure is 80 ft (24.4 m) long with a longest span of 24 ft (7.3 m) and a deck 68 ft wide.

Who owns College Avenue over Carroll Creek Floodplain?

It is owned by the City or Municipal Highway Agency.