US Bridges

SP 348 WB over BNSF RR & Turnarounds

Fair

Dallas County, Texas · 1.4 MI NW of IH 35E · Structure no. 180570035304042

Built
1936
89 years old, rebuilt 1975
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
156 ft
3 main spans
Daily traffic
9,983
2023 count
Owner
State
State Highway Agency

About this bridge

SP 348 WB over BNSF RR & Turnarounds is a steel stringer/multi-beam or girder carrying SP 348 WB over BNSF RR & Turnarounds in Dallas County, Texas. It was built in 1936 and reconstructed in 1975, so it is 89 years old, older 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 5 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 9,983 vehicles a day, roughly 10% of them trucks, projected to reach 23,760 by 2033. The structure is 156 ft (47.5 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSP 348 WB
CrossesBNSF RR & Turnarounds
Location1.4 MI NW of IH 35E
RouteState Highway 348
CountyDallas County
StateTexas
Coordinates32.87004, -96.91671
Functional classUrban Other Principal Arterial

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length156 ft (47.5 m)
Longest span52 ft (15.9 m)
Deck width47 ft (14.4 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,983 (2023)
Projected traffic23,760 by 2033
Trucks10%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$13,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was SP 348 WB over BNSF RR & Turnarounds built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1975.

What condition is SP 348 WB over BNSF RR & Turnarounds 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 SP 348 WB over BNSF RR & Turnarounds carry?

About 9,983 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SP 348 WB over BNSF RR & Turnarounds?

The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.9 m) and a deck 47 ft wide.

Who owns SP 348 WB over BNSF RR & Turnarounds?

It is owned by the State Highway Agency.