US Bridges

IH 45 SB Off Ramp over Trinity River Branch

Fair

Dallas County, Texas · 1.0 MI N of Illinois St. · Structure no. 180570009214220

Built
1972
53 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
699 ft
9 main spans
Daily traffic
86,329
2023 count
Owner
State
State Highway Agency

About this bridge

IH 45 SB Off Ramp over Trinity River Branch is a prestressed concrete stringer/multi-beam or girder carrying IH 45 SB Off Ramp over Trinity River Branch in Dallas County, Texas. It was built in 1972, so it is 53 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 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 86,329 vehicles a day, roughly 3% of them trucks, projected to reach 1,398 by 2042. The structure is 699 ft (213.1 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIH 45 SB Off Ramp
CrossesTrinity River Branch
Location1.0 MI N of Illinois St.
RouteInterstate 45
StateTexas
Coordinates32.72665, -96.76323
Functional classUrban Principal Arterial - Interstate

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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum 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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans9
Design loadHS 20
Structure length699 ft (213.1 m)
Longest span78 ft (23.8 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,329 (2023)
Projected traffic1,398 by 2042
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IH 45 SB Off Ramp over Trinity River Branch built?

It was built in 1972, making it 53 years old in 2025.

What condition is IH 45 SB Off Ramp over Trinity River Branch 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 March 2024.

How much traffic does IH 45 SB Off Ramp over Trinity River Branch carry?

About 86,329 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is IH 45 SB Off Ramp over Trinity River Branch?

The structure is 699 ft (213.1 m) long with a longest span of 78 ft (23.8 m) and a deck 27 ft wide.

Who owns IH 45 SB Off Ramp over Trinity River Branch?

It is owned by the State Highway Agency.