US Bridges

US 17 over S-1271/BOWMAN Road

Good

Charleston County, South Carolina · Charleston · Structure no. 000000000010082

Built
2014
11 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
161 ft
1 main span
Daily traffic
74,100
2023 count
Owner
State
State Highway Agency

About this bridge

US 17 over S-1271/BOWMAN Road is a steel stringer/multi-beam or girder carrying US 17 over S-1271/BOWMAN Road in Charleston County, South Carolina. It was built in 2014, so it is 11 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 74,100 vehicles a day, roughly 3% of them trucks, projected to reach 203,034 by 2043. The structure is 161 ft (49.1 m) long and 84 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 17
CrossesS-1271/BOWMAN Road
LocationCharleston
RouteU.S. Route 17
Coordinates32.81299, -79.856
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating48.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length161 ft (49.1 m)
Longest span161 ft (49.1 m)
Deck width84 ft (25.6 m)
Roadway width81 ft (24.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic74,100 (2023)
Projected traffic203,034 by 2043
Trucks3%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 over S-1271/BOWMAN Road built?

It was built in 2014, making it 11 years old in 2025.

What condition is US 17 over S-1271/BOWMAN Road 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 US 17 over S-1271/BOWMAN Road carry?

About 74,100 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is US 17 over S-1271/BOWMAN Road?

The structure is 161 ft (49.1 m) long with a longest span of 161 ft (49.1 m) and a deck 84 ft wide.

Who owns US 17 over S-1271/BOWMAN Road?

It is owned by the State Highway Agency.