US Bridges

SR1628 over Southern Railway

FairPosted for load

Burke County, North Carolina · .05 MI.N.JCT.US64 70 · Structure no. 000000000230302

Built
1950
75 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
3 main spans
Daily traffic
3,900
2021 count
Owner
State
State Highway Agency

About this bridge

SR1628 over Southern Railway is a steel stringer/multi-beam or girder carrying SR1628 over Southern Railway in Burke County, North Carolina. It was built in 1950, so it is 75 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 3,900 vehicles a day, roughly 7% of them trucks, projected to reach 7,800 by 2040. The structure is 91 ft (27.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR1628
CrossesSouthern Railway
Location.05 MI.N.JCT.US64 70
RouteState Highway 1628
Coordinates35.71567, -81.42483
Functional classUrban Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.9 US tons
Inventory rating22.9 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length91 ft (27.7 m)
Longest span29 ft (8.8 m)
Deck width28 ft (8.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2021)
Projected traffic7,800 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1628 over Southern Railway built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR1628 over Southern Railway 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 October 2023.

How much traffic does SR1628 over Southern Railway carry?

About 3,900 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1628 over Southern Railway?

The structure is 91 ft (27.7 m) long with a longest span of 29 ft (8.8 m) and a deck 28 ft wide.

Who owns SR1628 over Southern Railway?

It is owned by the State Highway Agency.