US Bridges

Big Stone Road over Cypress Branch

Fair

Kent County, Maryland · 0.4 MI S of Md RTE 330 · Structure no. 200000K-0008010

Built
1962
63 years old
Condition
Fair
inspected November 2024
Type
Slab
Prestressed Concrete
Length
80 ft
3 main spans
Daily traffic
265
2024 count
Owner
County
County Highway Agency

About this bridge

Big Stone Road over Cypress Branch is a prestressed concrete slab carrying Big Stone Road over Cypress Branch in Kent County, Maryland. It was built in 1962, so it is 63 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 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 265 vehicles a day, roughly 10% of them trucks, projected to reach 325 by 2044. The structure is 80 ft (24.5 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBig Stone Road
CrossesCypress Branch
Location0.4 MI S of Md RTE 330
RouteCounty Highway 326
Coordinates39.25825, -75.80956
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 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 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 rating36 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadUnknown
Structure length80 ft (24.5 m)
Longest span26 ft (7.9 m)
Deck width31 ft (9.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2024)
Projected traffic325 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Big Stone Road over Cypress Branch built?

It was built in 1962, making it 63 years old in 2025.

What condition is Big Stone Road over Cypress 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 November 2024.

How much traffic does Big Stone Road over Cypress Branch carry?

About 265 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Big Stone Road over Cypress Branch?

The structure is 80 ft (24.5 m) long with a longest span of 26 ft (7.9 m) and a deck 31 ft wide.

Who owns Big Stone Road over Cypress Branch?

It is owned by the County Highway Agency.