US Bridges

SR1866 over Allen Creek

Fair

Catawba County, North Carolina · 0.3 Mi. S. Jct. SR1874 · Structure no. 000000000350140

Built
1992
33 years old
Condition
Fair
inspected February 2025
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
350
1998 count
Owner
State
State Highway Agency

About this bridge

SR1866 over Allen Creek is a steel culvert carrying SR1866 over Allen Creek in Catawba County, North Carolina. It was built in 1992, so it is 33 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 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.

It carries about 350 vehicles a day, roughly 6% of them trucks, projected to reach 700 by 2040. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR1866
CrossesAllen Creek
Location0.3 Mi. S. Jct. SR1874
RouteState Highway 1866
CountyCatawba County
StateNorth Carolina
Coordinates35.58269, -81.15264
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating89.9 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (1998)
Projected traffic700 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 SR1866 over Allen Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is SR1866 over Allen 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 February 2025.

How much traffic does SR1866 over Allen Creek carry?

About 350 vehicles per day (1998 count), of which roughly 6% are trucks.

How long is SR1866 over Allen Creek?

The structure is 22 ft (6.7 m) long with a longest span of 8 ft (2.4 m).

Who owns SR1866 over Allen Creek?

It is owned by the State Highway Agency.