US Bridges

SH 66 over Drain

Good

Dallas County, Texas · 6.3 MI E of SH 78 · Structure no. 180570000903323

Built
1977
48 years old, rebuilt 1998
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
31 ft
4 main spans
Daily traffic
554
2022 count
Owner
State
State Highway Agency

About this bridge

SH 66 over Drain is a concrete culvert carrying SH 66 over Drain in Dallas County, Texas. It was built in 1977 and reconstructed in 1998, so it is 48 years old, older 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 554 vehicles a day, roughly 19% of them trucks, projected to reach 44,030 by 2033. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSH 66
CrossesDrain
Location6.3 MI E of SH 78
RouteState Highway 66
StateTexas
Coordinates32.91318, -96.52641
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic554 (2022)
Projected traffic44,030 by 2033
Trucks19%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 Drain built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1998.

What condition is SH 66 over Drain 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 January 2024.

How much traffic does SH 66 over Drain carry?

About 554 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is SH 66 over Drain?

The structure is 31 ft (9.3 m) long with a longest span of 5 ft (1.5 m).

Who owns SH 66 over Drain?

It is owned by the State Highway Agency.