US Bridges

East Street over Carroll Creek

Fair

Frederick County, Maryland · Just S. of South Street · Structure no. 200000F-F-42010

Built
1999
26 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
15,334
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

East Street over Carroll Creek is a concrete slab carrying East Street over Carroll Creek in Frederick County, Maryland. It was built in 1999, so it is 26 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 5 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 15,334 vehicles a day, roughly 5% of them trucks, projected to reach 20,348 by 2042. The structure is 29 ft (8.8 m) long and 68 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesEast Street
CrossesCarroll Creek
LocationJust S. of South Street
RouteState Highway 475
Coordinates39.41278, -77.40556
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating76.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1 (+4 approach)
Design loadHS 25 or greater
Structure length29 ft (8.8 m)
Longest span29 ft (8.8 m)
Deck width68 ft (20.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,334 (2022)
Projected traffic20,348 by 2042
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was East Street over Carroll Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is East Street over Carroll 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 February 2024.

How much traffic does East Street over Carroll Creek carry?

About 15,334 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is East Street over Carroll Creek?

The structure is 29 ft (8.8 m) long with a longest span of 29 ft (8.8 m) and a deck 68 ft wide.

Who owns East Street over Carroll Creek?

It is owned by the City or Municipal Highway Agency.