US Bridges

FM 866 over Drain

Fair

Ector County, Texas · 3.55 MI N of IH 20 · Structure no. 060690112705008

Built
1969
56 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
22 ft
4 main spans
Daily traffic
3,320
2020 count
Owner
State
State Highway Agency

About this bridge

FM 866 over Drain is a concrete culvert carrying FM 866 over Drain in Ector County, Texas. It was built in 1969, so it is 56 years old, older than the Texas average of 44.4 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 3,320 vehicles a day, roughly 21% of them trucks, projected to reach 4,100 by 2033. The structure is 22 ft (6.7 m) long and 49 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesFM 866
CrossesDrain
Location3.55 MI N of IH 20
RouteState Highway 866
CountyEctor County
StateTexas
Coordinates31.8094, -102.55691
Functional classUrban Minor Arterial

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span5 ft (1.5 m)
Deck width49 ft (15 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,320 (2020)
Projected traffic4,100 by 2033
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 866 over Drain built?

It was built in 1969, making it 56 years old in 2025.

What condition is FM 866 over Drain 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 2023.

How much traffic does FM 866 over Drain carry?

About 3,320 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is FM 866 over Drain?

The structure is 22 ft (6.7 m) long with a longest span of 5 ft (1.5 m) and a deck 49 ft wide.

Who owns FM 866 over Drain?

It is owned by the State Highway Agency.