US Bridges

SH 66 over East Caddo Slough South

Good

Hunt County, Texas · 8.9 MI NE Rockwall C/L · Structure no. 011170000906432

Built
2000
25 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
177 ft
3 main spans
Daily traffic
3,464
2020 count
Owner
State
State Highway Agency

About this bridge

SH 66 over East Caddo Slough South is a prestressed concrete stringer/multi-beam or girder carrying SH 66 over East Caddo Slough South in Hunt County, Texas. It was built in 2000, so it is 25 years old, younger than the Texas average of 44.4 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 3,464 vehicles a day, roughly 28% of them trucks, projected to reach 4,680 by 2033. The structure is 177 ft (54 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesSH 66
CrossesEast Caddo Slough South
Location8.9 MI NE Rockwall C/L
RouteState Highway 66
CountyHunt County
StateTexas
Coordinates33.09369, -96.18605
Functional classRural Principal Arterial - Other

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length177 ft (54 m)
Longest span59 ft (18 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,464 (2020)
Projected traffic4,680 by 2033
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 SH 66 over East Caddo Slough South built?

It was built in 2000, making it 25 years old in 2025.

What condition is SH 66 over East Caddo Slough South 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 2023.

How much traffic does SH 66 over East Caddo Slough South carry?

About 3,464 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is SH 66 over East Caddo Slough South?

The structure is 177 ft (54 m) long with a longest span of 59 ft (18 m) and a deck 45 ft wide.

Who owns SH 66 over East Caddo Slough South?

It is owned by the State Highway Agency.