US Bridges

Spencer HWY over UPRR

Fair

Harris County, Texas · 0.6 MI W of SH 146 · Structure no. 121020AA1705001

Built
1978
47 years old, rebuilt 1992
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
188 ft
2 main spans
Daily traffic
45,486
2013 count
Owner
County
County Highway Agency

About this bridge

Spencer HWY over UPRR is a prestressed concrete stringer/multi-beam or girder carrying Spencer HWY over UPRR in Harris County, Texas. It was built in 1978 and reconstructed in 1992, so it is 47 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 45,486 vehicles a day, projected to reach 27,590 by 2030. The structure is 188 ft (57.3 m) long and 96 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesSpencer HWY
CrossesUPRR
Location0.6 MI W of SH 146
RouteCounty Highway 20
CountyHarris County
StateTexas
Coordinates29.66516, -95.03912
Functional classUrban Other Principal Arterial

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.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2 (+1 approach)
Design loadH 20
Structure length188 ft (57.3 m)
Longest span71 ft (21.6 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 and pedestrian
CrossesHighway and railroad
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Spencer HWY over UPRR built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1992.

What condition is Spencer HWY over UPRR 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 Spencer HWY over UPRR carry?

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

How long is Spencer HWY over UPRR?

The structure is 188 ft (57.3 m) long with a longest span of 71 ft (21.6 m) and a deck 96 ft wide.

Who owns Spencer HWY over UPRR?

It is owned by the County Highway Agency.