US Bridges

IH 45 SB Hou Conn over R.O.W.

Fair

Harris County, Texas · 0.10 MI S of Memorial DR · Structure no. 121020050003212

Built
1962
63 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
261 ft
5 main spans
Daily traffic
19,064
2024 count
Owner
State
State Highway Agency

About this bridge

IH 45 SB Hou Conn over R.O.W. is a steel stringer/multi-beam or girder carrying IH 45 SB Hou Conn over R.O.W. in Harris County, Texas. It was built in 1962, so it is 63 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 19,064 vehicles a day, roughly 7% of them trucks, projected to reach 30,220 by 2033. The structure is 261 ft (79.6 m) long and 41 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIH 45 SB Hou Conn
CrossesR.O.W.
Location0.10 MI S of Memorial DR
RouteInterstate 45
CountyHarris County
StateTexas
Coordinates29.76155, -95.37372
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length261 ft (79.6 m)
Longest span53 ft (16.2 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,064 (2024)
Projected traffic30,220 by 2033
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$19,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 45 SB Hou Conn over R.O.W. built?

It was built in 1962, making it 63 years old in 2025.

What condition is IH 45 SB Hou Conn over R.O.W. 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 Hou Conn over R.O.W. carry?

About 19,064 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is IH 45 SB Hou Conn over R.O.W.?

The structure is 261 ft (79.6 m) long with a longest span of 53 ft (16.2 m) and a deck 41 ft wide.

Who owns IH 45 SB Hou Conn over R.O.W.?

It is owned by the State Highway Agency.