US Bridges

Alden Road over Blackwater Swamp

Fair

Prince George County, Virginia · 0.60 FR 613 &2.46 to Ecl · Structure no. 000000000014081

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
145 ft
3 main spans
Daily traffic
165
2014 count
Owner
State
State Highway Agency

About this bridge

Alden Road over Blackwater Swamp is a concrete tee beam carrying Alden Road over Blackwater Swamp in Prince George County, Virginia. It was built in 1958, so it is 67 years old, older than the Virginia average of 50.7 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 165 vehicles a day, projected to reach 240 by 2042. The structure is 145 ft (44.1 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesAlden Road
CrossesBlackwater Swamp
Location0.60 FR 613 &2.46 to Ecl
RouteCounty Highway 601
CountyPrince George County
StateVirginia
Coordinates37.12246, -77.18594
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating41 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length145 ft (44.1 m)
Longest span48 ft (14.5 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic165 (2014)
Projected traffic240 by 2042
Trucks0%
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

OwnerState Highway Agency
Maintained byState 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 Alden Road over Blackwater Swamp built?

It was built in 1958, making it 67 years old in 2025.

What condition is Alden Road over Blackwater Swamp 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 March 2024.

How much traffic does Alden Road over Blackwater Swamp carry?

About 165 vehicles per day (2014 count).

How long is Alden Road over Blackwater Swamp?

The structure is 145 ft (44.1 m) long with a longest span of 48 ft (14.5 m) and a deck 27 ft wide.

Who owns Alden Road over Blackwater Swamp?

It is owned by the State Highway Agency.