US Bridges

FM 1766 over Mill Creek

Good

Cass County, Texas · 2.30 MI NE of SH 77 · Structure no. 190340195701001

Built
1953
72 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
59 ft
6 main spans
Daily traffic
175
2020 count
Owner
State
State Highway Agency

About this bridge

FM 1766 over Mill Creek is a concrete culvert carrying FM 1766 over Mill Creek in Cass County, Texas. It was built in 1953, so it is 72 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 175 vehicles a day, roughly 14% of them trucks, projected to reach 310 by 2033. The structure is 59 ft (18 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFM 1766
CrossesMill Creek
Location2.30 MI NE of SH 77
RouteState Highway 1766
StateTexas
Coordinates33.22359, -94.56837
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadOther
Structure length59 ft (18 m)
Longest span9 ft (2.7 m)
Deck width35 ft (10.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic310 by 2033
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 1766 over Mill Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is FM 1766 over Mill Creek 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 August 2024.

How much traffic does FM 1766 over Mill Creek carry?

About 175 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is FM 1766 over Mill Creek?

The structure is 59 ft (18 m) long with a longest span of 9 ft (2.7 m) and a deck 35 ft wide.

Who owns FM 1766 over Mill Creek?

It is owned by the State Highway Agency.