US Bridges

Colwell RD over SP 348

Fair

Dallas County, Texas · 3.00 MI NW of Lp 12 · Structure no. 180570035304162

Built
1984
41 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
440 ft
3 main spans
Daily traffic
6,755
2019 count
Owner
State
State Highway Agency

About this bridge

Colwell RD over SP 348 is a prestressed concrete stringer/multi-beam or girder carrying Colwell RD over SP 348 in Dallas County, Texas. It was built in 1984, so it is 41 years old, younger 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 6 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 6,755 vehicles a day, projected to reach 6,000 by 2036. The structure is 440 ft (134.1 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesColwell RD
CrossesSP 348
Location3.00 MI NW of Lp 12
RouteCity Street 0
CountyDallas County
StateTexas
Coordinates32.88175, -96.94671
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3 (+2 approach)
Design loadHS 20
Structure length440 ft (134.1 m)
Longest span120 ft (36.6 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deck26 ft (7.8 m)

Traffic and service

Average daily traffic6,755 (2019)
Projected traffic6,000 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Colwell RD over SP 348 built?

It was built in 1984, making it 41 years old in 2025.

What condition is Colwell RD over SP 348 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 January 2024.

How much traffic does Colwell RD over SP 348 carry?

About 6,755 vehicles per day (2019 count).

How long is Colwell RD over SP 348?

The structure is 440 ft (134.1 m) long with a longest span of 120 ft (36.6 m) and a deck 38 ft wide.

Who owns Colwell RD over SP 348?

It is owned by the State Highway Agency.