US Bridges

SH 121 over Draw

Good

Collin County, Texas · 2.9 MI SW of SH 160 · Structure no. 180430054903244

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
23,900
2023 count
Owner
State
State Highway Agency

About this bridge

SH 121 over Draw is a concrete culvert carrying SH 121 over Draw in Collin County, Texas. It was built in 2023, so it is 2 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 23,900 vehicles a day, roughly 10% of them trucks, projected to reach 1 by 1900. The structure is 21 ft (6.4 m) long.

CarriesSH 121
CrossesDraw
Location2.9 MI SW of SH 160
RouteState Highway 121
StateTexas
Coordinates33.35896, -96.44308
Functional classRural Principal Arterial - Other

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 inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic23,900 (2023)
Projected traffic1 by 1900
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 121 over Draw built?

It was built in 2023, making it 2 years old in 2025.

What condition is SH 121 over Draw 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 December 2023.

How much traffic does SH 121 over Draw carry?

About 23,900 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SH 121 over Draw?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns SH 121 over Draw?

It is owned by the State Highway Agency.