US Bridges

Cottage ST over IH 45

Fair

Harris County, Texas · 1.25 MI N of IH 10 · Structure no. 121020050003118

Built
1962
63 years old, rebuilt 1994
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
177 ft
2 main spans
Daily traffic
360
2010 count
Owner
State
State Highway Agency

About this bridge

Cottage ST over IH 45 is a steel continuous stringer/multi-beam or girder carrying Cottage ST over IH 45 in Harris County, Texas. It was built in 1962 and reconstructed in 1994, 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 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 360 vehicles a day, projected to reach 360 by 2027. The structure is 177 ft (54 m) long and 55 ft wide.

Location

Open in Google Maps
CarriesCottage ST
CrossesIH 45
Location1.25 MI N of IH 10
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.79213, -95.37181
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadH 20
Structure length177 ft (54 m)
Longest span71 ft (21.6 m)
Deck width55 ft (16.7 m)
Roadway width44 ft (13.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2010)
Projected traffic360 by 2027
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cottage ST over IH 45 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1994.

What condition is Cottage ST over IH 45 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 August 2024.

How much traffic does Cottage ST over IH 45 carry?

About 360 vehicles per day (2010 count).

How long is Cottage ST over IH 45?

The structure is 177 ft (54 m) long with a longest span of 71 ft (21.6 m) and a deck 55 ft wide.

Who owns Cottage ST over IH 45?

It is owned by the State Highway Agency.