US Bridges

Cambridge ST over Brays Bayou

Good

Harris County, Texas · 0.05 MI S of Braeswood · Structure no. 121020B11745001

Built
2009
16 years old
Condition
Good
inspected October 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
264 ft
2 main spans
Daily traffic
5,000
2009 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cambridge ST over Brays Bayou is a prestressed concrete box beam or girders - multiple carrying Cambridge ST over Brays Bayou in Harris County, Texas. It was built in 2009, so it is 16 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,000 vehicles a day, projected to reach 8,000 by 2027. The structure is 264 ft (80.5 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesCambridge ST
CrossesBrays Bayou
Location0.05 MI S of Braeswood
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.70754, -95.39031
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadUnknown
Structure length264 ft (80.5 m)
Longest span100 ft (30.5 m)
Deck width89 ft (27.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2009)
Projected traffic8,000 by 2027
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$33,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Cambridge ST over Brays Bayou built?

It was built in 2009, making it 16 years old in 2025.

What condition is Cambridge ST over Brays Bayou in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Cambridge ST over Brays Bayou carry?

About 5,000 vehicles per day (2009 count).

How long is Cambridge ST over Brays Bayou?

The structure is 264 ft (80.5 m) long with a longest span of 100 ft (30.5 m) and a deck 89 ft wide.

Who owns Cambridge ST over Brays Bayou?

It is owned by the City or Municipal Highway Agency.