US Bridges

FM 73 over Navasota Riv Rel #1

Good

Limestone County, Texas · 5.90 MI NE of US 84 · Structure no. 091470067301011

Built
1987
38 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
48 ft
5 main spans
Daily traffic
478
2015 count
Owner
State
State Highway Agency

About this bridge

FM 73 over Navasota Riv Rel #1 is a concrete culvert carrying FM 73 over Navasota Riv Rel #1 in Limestone County, Texas. It was built in 1987, so it is 38 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 478 vehicles a day, roughly 7% of them trucks, projected to reach 910 by 2033. The structure is 48 ft (14.6 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesFM 73
CrossesNavasota Riv Rel #1
Location5.90 MI NE of US 84
RouteState Highway 73
CountyLimestone County
StateTexas
Coordinates31.70323, -96.72186
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span9 ft (2.7 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic478 (2015)
Projected traffic910 by 2033
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM 73 over Navasota Riv Rel #1 built?

It was built in 1987, making it 38 years old in 2025.

What condition is FM 73 over Navasota Riv Rel #1 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 July 2023.

How much traffic does FM 73 over Navasota Riv Rel #1 carry?

About 478 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is FM 73 over Navasota Riv Rel #1?

The structure is 48 ft (14.6 m) long with a longest span of 9 ft (2.7 m) and a deck 36 ft wide.

Who owns FM 73 over Navasota Riv Rel #1?

It is owned by the State Highway Agency.