US Bridges

Grags Causeway over Mill Dam Creek

Good

Virginia Beach city, Virginia · 0.50 MI from Baum Road · Structure no. 000000000030676

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
382
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grags Causeway over Mill Dam Creek is a concrete culvert carrying Grags Causeway over Mill Dam Creek in Virginia Beach city, Virginia. It was built in 2015, so it is 10 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 382 vehicles a day, projected to reach 422 by 2042. The structure is 22 ft (6.7 m) long.

CarriesGrags Causeway
CrossesMill Dam Creek
Location0.50 MI from Baum Road
RouteCity Street 0
Coordinates36.5757, -76.09745
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length22 ft (6.7 m)
Longest span22 ft (6.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic382 (2014)
Projected traffic422 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Grags Causeway over Mill Dam Creek built?

It was built in 2015, making it 10 years old in 2025.

What condition is Grags Causeway over Mill Dam 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 September 2023.

How much traffic does Grags Causeway over Mill Dam Creek carry?

About 382 vehicles per day (2014 count).

How long is Grags Causeway over Mill Dam Creek?

The structure is 22 ft (6.7 m) long with a longest span of 22 ft (6.7 m).

Who owns Grags Causeway over Mill Dam Creek?

It is owned by the City or Municipal Highway Agency.