US Bridges

Wrights Mill Road over Granite Branch

FairPosted for load

Baltimore County, Maryland · 0.46 MI N of Davis Ave · Structure no. 200000B-0162010

Built
1920
105 years old, rebuilt 1950
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
239
2022 count
Owner
County
County Highway Agency

About this bridge

Wrights Mill Road over Granite Branch is a concrete slab carrying Wrights Mill Road over Granite Branch in Baltimore County, Maryland. It was built in 1920 and reconstructed in 1950, so it is 105 years old, older 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. Its operating status is: posted for load restriction.

It carries about 239 vehicles a day, roughly 5% of them trucks, projected to reach 418 by 2042. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesWrights Mill Road
CrossesGranite Branch
Location0.46 MI N of Davis Ave
RouteCounty Highway 2355
CountyBaltimore County
StateMaryland
Coordinates39.32969, -76.82424
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating28 US tons
Inventory rating17 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic239 (2022)
Projected traffic418 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wrights Mill Road over Granite Branch built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1950.

What condition is Wrights Mill Road over Granite Branch 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 2023.

How much traffic does Wrights Mill Road over Granite Branch carry?

About 239 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Wrights Mill Road over Granite Branch?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 32 ft wide.

Who owns Wrights Mill Road over Granite Branch?

It is owned by the County Highway Agency.