US Bridges

SH 73 EB over FM 366 & KCS Railroad

Fair

Jefferson County, Texas · 0.7 MI NE of SH 87 · Structure no. 201240030603023

Built
1972
53 years old
Condition
Fair
inspected July 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
575 ft
7 main spans
Daily traffic
8,818
2020 count
Owner
State
State Highway Agency

About this bridge

SH 73 EB over FM 366 & KCS Railroad is a prestressed concrete stringer/multi-beam or girder carrying SH 73 EB over FM 366 & KCS Railroad in Jefferson County, Texas. It was built in 1972, so it is 53 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 8,818 vehicles a day, roughly 6% of them trucks, projected to reach 19,364 by 2038. The structure is 575 ft (175.3 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesSH 73 EB
CrossesFM 366 & KCS Railroad
Location0.7 MI NE of SH 87
RouteState Highway 73
CountyJefferson County
StateTexas
Coordinates29.94827, -93.88543
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7 (+2 approach)
Design loadHS 20
Structure length575 ft (175.3 m)
Longest span75 ft (22.9 m)
Deck width44 ft (13.5 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,818 (2020)
Projected traffic19,364 by 2038
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 73 EB over FM 366 & KCS Railroad built?

It was built in 1972, making it 53 years old in 2025.

What condition is SH 73 EB over FM 366 & KCS Railroad 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 July 2022.

How much traffic does SH 73 EB over FM 366 & KCS Railroad carry?

About 8,818 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is SH 73 EB over FM 366 & KCS Railroad?

The structure is 575 ft (175.3 m) long with a longest span of 75 ft (22.9 m) and a deck 44 ft wide.

Who owns SH 73 EB over FM 366 & KCS Railroad?

It is owned by the State Highway Agency.