US Bridges

FM 660 over Red Oak Creek Relief

Fair

Ellis County, Texas · 6.0 MI SE of IH 45 · Structure no. 180710104802019

Built
1954
71 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
38 ft
3 main spans
Daily traffic
991
2020 count
Owner
State
State Highway Agency

About this bridge

FM 660 over Red Oak Creek Relief is a concrete culvert carrying FM 660 over Red Oak Creek Relief in Ellis County, Texas. It was built in 1954, so it is 71 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 5 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 991 vehicles a day, roughly 8% of them trucks, projected to reach 1,060 by 2040. The structure is 38 ft (11.6 m) long and 29 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesFM 660
CrossesRed Oak Creek Relief
Location6.0 MI SE of IH 45
RouteState Highway 660
CountyEllis County
StateTexas
Coordinates32.48208, -96.5817
Functional classRural Major Collector

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
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 spans3
Design loadOther
Structure length38 ft (11.6 m)
Longest span10 ft (3 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic991 (2020)
Projected traffic1,060 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed14.3 mi (23 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 660 over Red Oak Creek Relief built?

It was built in 1954, making it 71 years old in 2025.

What condition is FM 660 over Red Oak Creek Relief 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 October 2023.

How much traffic does FM 660 over Red Oak Creek Relief carry?

About 991 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is FM 660 over Red Oak Creek Relief?

The structure is 38 ft (11.6 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns FM 660 over Red Oak Creek Relief?

It is owned by the State Highway Agency.