US Bridges

SP 303 over Drain

Good

Dallas County, Texas · 0.3 MI W of Loop 12 · Structure no. 180570220802013

Built
1977
48 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
28 ft
5 main spans
Daily traffic
11,707
2022 count
Owner
State
State Highway Agency

About this bridge

SP 303 over Drain is a concrete culvert carrying SP 303 over Drain in Dallas County, Texas. It was built in 1977, so it is 48 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 11,707 vehicles a day, roughly 4% of them trucks, projected to reach 10,189 by 2042. The structure is 28 ft (8.5 m) long and 105 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesSP 303
CrossesDrain
Location0.3 MI W of Loop 12
RouteState Highway 303
StateTexas
Coordinates32.7057, -96.91016
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
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 spans5
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span5 ft (1.5 m)
Deck width105 ft (32 m)
Roadway width66 ft (20.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,707 (2022)
Projected traffic10,189 by 2042
Trucks4%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$5,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SP 303 over Drain built?

It was built in 1977, making it 48 years old in 2025.

What condition is SP 303 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 August 2024.

How much traffic does SP 303 over Drain carry?

About 11,707 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SP 303 over Drain?

The structure is 28 ft (8.5 m) long with a longest span of 5 ft (1.5 m) and a deck 105 ft wide.

Who owns SP 303 over Drain?

It is owned by the State Highway Agency.