US Bridges

N 16th ST over Little Cedar Bayou

Fair

Harris County, Texas · 0.5 MI N of Spencer HWY · Structure no. 121020AA0070001

Built
1970
55 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
360
2009 count
Owner
County
County Highway Agency

About this bridge

N 16th ST over Little Cedar Bayou is a concrete culvert carrying N 16th ST over Little Cedar Bayou in Harris County, Texas. It was built in 1970, so it is 55 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 360 vehicles a day, projected to reach 575 by 2028. The structure is 22 ft (6.7 m) long and 40 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesN 16th ST
CrossesLittle Cedar Bayou
Location0.5 MI N of Spencer HWY
RouteCounty Highway 0
CountyHarris County
StateTexas
Coordinates29.67303, -95.03616
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span10 ft (3 m)
Deck width40 ft (12.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2009)
Projected traffic575 by 2028
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N 16th ST over Little Cedar Bayou built?

It was built in 1970, making it 55 years old in 2025.

What condition is N 16th ST over Little Cedar Bayou 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 September 2023.

How much traffic does N 16th ST over Little Cedar Bayou carry?

About 360 vehicles per day (2009 count).

How long is N 16th ST over Little Cedar Bayou?

The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 40 ft wide.

Who owns N 16th ST over Little Cedar Bayou?

It is owned by the County Highway Agency.