US Bridges

IH 45 SB Conn C over SP 5 Cullen Hb&t RR

Fair

Harris County, Texas · 1.50 MI SE of US 59 · Structure no. 121020050003289

Built
1988
37 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
2,020 ft
15 main spans
Daily traffic
18,430
2013 count
Owner
State
State Highway Agency

About this bridge

IH 45 SB Conn C over SP 5 Cullen Hb&t RR is a prestressed concrete stringer/multi-beam or girder carrying IH 45 SB Conn C over SP 5 Cullen Hb&t RR in Harris County, Texas. It was built in 1988, so it is 37 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 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 18,430 vehicles a day, roughly 7% of them trucks, projected to reach 25,810 by 2033. The structure is 2,020 ft (615.7 m) long and 42 ft wide.

Location

Open in Google Maps
CarriesIH 45 SB Conn C
CrossesSP 5 Cullen Hb&t RR
Location1.50 MI SE of US 59
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.72855, -95.33825
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans15 (+4 approach)
Design loadHS 20
Structure length2,020 ft (615.7 m)
Longest span119 ft (36.3 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,430 (2013)
Projected traffic25,810 by 2033
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 45 SB Conn C over SP 5 Cullen Hb&t RR built?

It was built in 1988, making it 37 years old in 2025.

What condition is IH 45 SB Conn C over SP 5 Cullen Hb&t RR 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 October 2024.

How much traffic does IH 45 SB Conn C over SP 5 Cullen Hb&t RR carry?

About 18,430 vehicles per day (2013 count), of which roughly 7% are trucks.

How long is IH 45 SB Conn C over SP 5 Cullen Hb&t RR?

The structure is 2,020 ft (615.7 m) long with a longest span of 119 ft (36.3 m) and a deck 42 ft wide.

Who owns IH 45 SB Conn C over SP 5 Cullen Hb&t RR?

It is owned by the State Highway Agency.