US Bridges

FM 423 over Drain

Good

Denton County, Texas · 0.11 MI N of Stonebrook · Structure no. 180610156702025

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
24 ft
4 main spans
Daily traffic
38,853
2022 count
Owner
State
State Highway Agency

About this bridge

FM 423 over Drain is a concrete culvert carrying FM 423 over Drain in Denton County, Texas. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 38,853 vehicles a day, roughly 1% of them trucks, projected to reach 36,270 by 2033. The structure is 24 ft (7.4 m) long and 158 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM 423
CrossesDrain
Location0.11 MI N of Stonebrook
RouteState Highway 423
StateTexas
Coordinates33.14637, -96.89098
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span5 ft (1.5 m)
Deck width158 ft (48.2 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,853 (2022)
Projected traffic36,270 by 2033
Trucks1%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 FM 423 over Drain built?

It was built in 2012, making it 13 years old in 2025.

What condition is FM 423 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 June 2024.

How much traffic does FM 423 over Drain carry?

About 38,853 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is FM 423 over Drain?

The structure is 24 ft (7.4 m) long with a longest span of 5 ft (1.5 m) and a deck 158 ft wide.

Who owns FM 423 over Drain?

It is owned by the State Highway Agency.