US Bridges

Blackwater Road over Milldam Creek

Good

Virginia Beach city, Virginia · 1.00W Gibbs RD.40IND Ck R · Structure no. 000000000023523

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
47 ft
1 main span
Daily traffic
774
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Blackwater Road over Milldam Creek is a prestressed concrete slab carrying Blackwater Road over Milldam Creek in Virginia Beach city, Virginia. It was built in 1992, so it is 33 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 774 vehicles a day, roughly 4% of them trucks, projected to reach 1,084 by 2040. The structure is 47 ft (14.3 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBlackwater Road
CrossesMilldam Creek
Location1.00W Gibbs RD.40IND Ck R
RouteCity Street 0
Coordinates36.5818, -76.0755
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating59.7 US tons
Inventory rating58.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span47 ft (14.3 m)
Deck width33 ft (10.1 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic774 (2020)
Projected traffic1,084 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$247 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Blackwater Road over Milldam Creek built?

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

What condition is Blackwater Road over Milldam Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does Blackwater Road over Milldam Creek carry?

About 774 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Blackwater Road over Milldam Creek?

The structure is 47 ft (14.3 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.

Who owns Blackwater Road over Milldam Creek?

It is owned by the City or Municipal Highway Agency.