US Bridges

US421 over Spencer Farlow DR Snows

Fair

New Hanover County, North Carolina · 6.0 Mi. S. Jct. Nc 132 · Structure no. 000000001290030

Built
1962
63 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
2,060 ft
3 main spans
Daily traffic
35,000
2021 count
Owner
State
State Highway Agency

About this bridge

US421 over Spencer Farlow DR Snows is a steel stringer/multi-beam or girder carrying US421 over Spencer Farlow DR Snows in New Hanover County, North Carolina. It was built in 1962, so it is 63 years old, older than the North Carolina average of 38.7 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 35,000 vehicles a day, roughly 12% of them trucks, projected to reach 70,000 by 2040. The structure is 2,060 ft (627.8 m) long and 64 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUS421
CrossesSpencer Farlow DR Snows
Location6.0 Mi. S. Jct. Nc 132
RouteU.S. Route 421
Coordinates34.05381, -77.89968
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.9 US tons
Inventory rating33 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+24 approach)
Design loadHS 15
Structure length2,060 ft (627.8 m)
Longest span160 ft (48.7 m)
Deck width64 ft (19.6 m)
Roadway width56 ft (17 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35,000 (2021)
Projected traffic70,000 by 2040
Trucks12%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and waterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was US421 over Spencer Farlow DR Snows built?

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

What condition is US421 over Spencer Farlow DR Snows 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 February 2024.

How much traffic does US421 over Spencer Farlow DR Snows carry?

About 35,000 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is US421 over Spencer Farlow DR Snows?

The structure is 2,060 ft (627.8 m) long with a longest span of 160 ft (48.7 m) and a deck 64 ft wide.

Who owns US421 over Spencer Farlow DR Snows?

It is owned by the State Highway Agency.