US Bridges

US 17 NB over S-1240

Good

Horry County, South Carolina · Myrtle Beach · Structure no. 000000000010111

Built
2018
7 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
280 ft
3 main spans
Daily traffic
18,350
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 NB over S-1240 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 17 NB over S-1240 in Horry County, South Carolina. It was built in 2018, so it is 7 years old, younger than the South Carolina average of 48 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 18,350 vehicles a day, roughly 4% of them trucks, projected to reach 22,938 by 2043. The structure is 280 ft (85.3 m) long and 47 ft wide.

CarriesUS 17 NB
CrossesS-1240
LocationMyrtle Beach
RouteU.S. Route 17
Coordinates33.62168, -79.00417
Functional classUrban Other Principal Arterial

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.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating27.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length280 ft (85.3 m)
Longest span121 ft (37 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,350 (2023)
Projected traffic22,938 by 2043
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 17 NB over S-1240 built?

It was built in 2018, making it 7 years old in 2025.

What condition is US 17 NB over S-1240 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 2024.

How much traffic does US 17 NB over S-1240 carry?

About 18,350 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is US 17 NB over S-1240?

The structure is 280 ft (85.3 m) long with a longest span of 121 ft (37 m) and a deck 47 ft wide.

Who owns US 17 NB over S-1240?

It is owned by the State Highway Agency.