US Bridges

SR1608 over Gum Swamp

Good

Richmond County, North Carolina · 0.6 Mi. E. Jct. SR 1605 · Structure no. 000000001530007

Built
2020
5 years old
Condition
Good
inspected April 2023
Type
Slab
Prestressed Concrete
Length
63 ft
1 main span
Daily traffic
300
2019 count
Owner
State
State Highway Agency

About this bridge

SR1608 over Gum Swamp is a prestressed concrete slab carrying SR1608 over Gum Swamp in Richmond County, North Carolina. It was built in 2020, so it is 5 years old, younger than the North Carolina average of 38.7 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 300 vehicles a day, roughly 6% of them trucks, projected to reach 600 by 2040. The structure is 63 ft (19.2 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

No coordinates are recorded for this structure.

CarriesSR1608
CrossesGum Swamp
Location0.6 Mi. E. Jct. SR 1605
RouteState Highway 1608
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
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 rating62.9 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length63 ft (19.2 m)
Longest span59 ft (17.9 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2019)
Projected traffic600 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkSTRAHNET connector

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1608 over Gum Swamp built?

It was built in 2020, making it 5 years old in 2025.

What condition is SR1608 over Gum Swamp 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 April 2023.

How much traffic does SR1608 over Gum Swamp carry?

About 300 vehicles per day (2019 count), of which roughly 6% are trucks.

How long is SR1608 over Gum Swamp?

The structure is 63 ft (19.2 m) long with a longest span of 59 ft (17.9 m) and a deck 30 ft wide.

Who owns SR1608 over Gum Swamp?

It is owned by the State Highway Agency.