US Bridges

SR1706 over US29

PoorPosted for load

Cabarrus County, North Carolina · 0.8 Mi. E. Jct. US29A · Structure no. 000000000250109

Built
1953
72 years old
Condition
Poor
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
190 ft
4 main spans
Daily traffic
4,000
2022 count
Owner
State
State Highway Agency

About this bridge

SR1706 over US29 is a steel stringer/multi-beam or girder carrying SR1706 over US29 in Cabarrus County, North Carolina. It was built in 1953, so it is 72 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 4,000 vehicles a day, roughly 7% of them trucks, projected to reach 8,000 by 2040. The structure is 190 ft (57.9 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesSR1706
CrossesUS29
Location0.8 Mi. E. Jct. US29A
RouteState Highway 1706
CountyCabarrus County
StateNorth Carolina
Coordinates35.49264, -80.61102
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19 US tons
Inventory rating10.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length190 ft (57.9 m)
Longest span48 ft (14.6 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2022)
Projected traffic8,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR1706 over US29 built?

It was built in 1953, making it 72 years old in 2025.

What condition is SR1706 over US29 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does SR1706 over US29 carry?

About 4,000 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR1706 over US29?

The structure is 190 ft (57.9 m) long with a longest span of 48 ft (14.6 m) and a deck 38 ft wide.

Who owns SR1706 over US29?

It is owned by the State Highway Agency.