US Bridges

Spencer HWY over Little Cedar Bayou

Good

Harris County, Texas · 0.2 MI W of SH 146 · Structure no. 121020AA1705002

Built
1992
33 years old
Condition
Good
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
100 ft
3 main spans
Daily traffic
45,486
2013 count
Owner
County
County Highway Agency

About this bridge

Spencer HWY over Little Cedar Bayou is a prestressed concrete box beam or girders - multiple carrying Spencer HWY over Little Cedar Bayou in Harris County, Texas. It was built in 1992, so it is 33 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 45,486 vehicles a day, projected to reach 27,590 by 2030. The structure is 100 ft (30.5 m) long and 96 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSpencer HWY
CrossesLittle Cedar Bayou
Location0.2 MI W of SH 146
RouteCounty Highway 20
CountyHarris County
StateTexas
Coordinates29.66523, -95.03325
Functional classUrban Other Principal Arterial

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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span33 ft (10.1 m)
Deck width96 ft (29.3 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,486 (2013)
Projected traffic27,590 by 2030
Trucks0%
Lanes on structure7
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$205,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Spencer HWY over Little Cedar Bayou built?

It was built in 1992, making it 33 years old in 2025.

What condition is Spencer HWY over Little Cedar 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 September 2023.

How much traffic does Spencer HWY over Little Cedar Bayou carry?

About 45,486 vehicles per day (2013 count).

How long is Spencer HWY over Little Cedar Bayou?

The structure is 100 ft (30.5 m) long with a longest span of 33 ft (10.1 m) and a deck 96 ft wide.

Who owns Spencer HWY over Little Cedar Bayou?

It is owned by the County Highway Agency.