US Bridges

Mills RD over Greens Bayou

Fair

Harris County, Texas · 0.2 MI W of FM 249 · Structure no. 121020B44945001

Built
1983
42 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
163 ft
3 main spans
Daily traffic
8,040
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mills RD over Greens Bayou is a prestressed concrete box beam or girders - multiple carrying Mills RD over Greens Bayou in Harris County, Texas. It was built in 1983, so it is 42 years old, younger 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 8,040 vehicles a day, roughly 1% of them trucks, projected to reach 9,000 by 2035. The structure is 163 ft (49.7 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMills RD
CrossesGreens Bayou
Location0.2 MI W of FM 249
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.95053, -95.53672
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 length163 ft (49.7 m)
Longest span54 ft (16.5 m)
Deck width38 ft (11.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,040 (2015)
Projected traffic9,000 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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$11,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mills RD over Greens Bayou built?

It was built in 1983, making it 42 years old in 2025.

What condition is Mills RD over Greens 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 Mills RD over Greens Bayou carry?

About 8,040 vehicles per day (2015 count), of which roughly 1% are trucks.

How long is Mills RD over Greens Bayou?

The structure is 163 ft (49.7 m) long with a longest span of 54 ft (16.5 m) and a deck 38 ft wide.

Who owns Mills RD over Greens Bayou?

It is owned by the City or Municipal Highway Agency.