US Bridges

US70 over Lyle Creek

Good

Catawba County, North Carolina · 0.6 Mi. W. Jct. SR1718 · Structure no. 000000000350134

Built
1988
37 years old
Condition
Good
inspected March 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
138 ft
3 main spans
Daily traffic
1,750
2015 count
Owner
State
State Highway Agency

About this bridge

US70 over Lyle Creek is a prestressed concrete stringer/multi-beam or girder carrying US70 over Lyle Creek in Catawba County, North Carolina. It was built in 1988, so it is 37 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 1,750 vehicles a day, roughly 8% of them trucks, projected to reach 3,500 by 2040. The structure is 138 ft (42 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesUS70
CrossesLyle Creek
Location0.6 Mi. W. Jct. SR1718
RouteU.S. Route 70
Coordinates35.72071, -81.10882
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2021
Inspection intervalevery 48 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.9 US tons
Inventory rating57 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length138 ft (42 m)
Longest span43 ft (13.1 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,750 (2015)
Projected traffic3,500 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US70 over Lyle Creek built?

It was built in 1988, making it 37 years old in 2025.

What condition is US70 over Lyle Creek 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 March 2021.

How much traffic does US70 over Lyle Creek carry?

About 1,750 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is US70 over Lyle Creek?

The structure is 138 ft (42 m) long with a longest span of 43 ft (13.1 m) and a deck 31 ft wide.

Who owns US70 over Lyle Creek?

It is owned by the State Highway Agency.