US Bridges

SR1606 over Robinsons Lake

Fair

Gaston County, North Carolina · 0.4 Mi. S. Jct. SR1607 · Structure no. 000000000710278

Built
1958
67 years old, rebuilt 1984
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
150
1978 count
Owner
State
State Highway Agency

About this bridge

SR1606 over Robinsons Lake is a steel stringer/multi-beam or girder carrying SR1606 over Robinsons Lake in Gaston County, North Carolina. It was built in 1958 and reconstructed in 1984, so it is 67 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 150 vehicles a day, roughly 6% of them trucks, projected to reach 300 by 2040. The structure is 32 ft (9.7 m) long and 20 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1606
CrossesRobinsons Lake
Location0.4 Mi. S. Jct. SR1607
RouteState Highway 1606
Coordinates35.37162, -81.21273
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length32 ft (9.7 m)
Longest span29 ft (8.8 m)
Deck width20 ft (6 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (1978)
Projected traffic300 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1606 over Robinsons Lake built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1984.

What condition is SR1606 over Robinsons Lake 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 July 2024.

How much traffic does SR1606 over Robinsons Lake carry?

About 150 vehicles per day (1978 count), of which roughly 6% are trucks.

How long is SR1606 over Robinsons Lake?

The structure is 32 ft (9.7 m) long with a longest span of 29 ft (8.8 m) and a deck 20 ft wide.

Who owns SR1606 over Robinsons Lake?

It is owned by the State Highway Agency.