US Bridges

SR1709 over Lyle Creek

Fair

Catawba County, North Carolina · 0.05 Mi. S. Jct. SR1711 · Structure no. 000000000350004

Built
1970
55 years old
Condition
Fair
inspected January 2025
Type
Slab
Prestressed Concrete
Length
135 ft
3 main spans
Daily traffic
2,200
2021 count
Owner
State
State Highway Agency

About this bridge

SR1709 over Lyle Creek is a prestressed concrete slab carrying SR1709 over Lyle Creek in Catawba County, North Carolina. It was built in 1970, so it is 55 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 2,200 vehicles a day, roughly 6% of them trucks, projected to reach 4,400 by 2040. The structure is 135 ft (41.1 m) long and 25 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR1709
CrossesLyle Creek
Location0.05 Mi. S. Jct. SR1711
RouteState Highway 1709
CountyCatawba County
StateNorth Carolina
Coordinates35.74228, -81.15985
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating53.9 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length135 ft (41.1 m)
Longest span44 ft (13.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2021)
Projected traffic4,400 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 SR1709 over Lyle Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is SR1709 over Lyle Creek 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 January 2025.

How much traffic does SR1709 over Lyle Creek carry?

About 2,200 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is SR1709 over Lyle Creek?

The structure is 135 ft (41.1 m) long with a longest span of 44 ft (13.4 m) and a deck 25 ft wide.

Who owns SR1709 over Lyle Creek?

It is owned by the State Highway Agency.