US Bridges

CR 102 over Navasota River Relief

Fair

Grimes County, Texas · 5.01 MI W of FM 39 · Structure no. 170940AA0327004

Built
1991
34 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
3 main spans
Daily traffic
140
2016 count
Owner
County
County Highway Agency

About this bridge

CR 102 over Navasota River Relief is a steel stringer/multi-beam or girder carrying CR 102 over Navasota River Relief in Grimes County, Texas. It was built in 1991, so it is 34 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 140 vehicles a day, projected to reach 150 by 2038. The structure is 81 ft (24.7 m) long and 16 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesCR 102
CrossesNavasota River Relief
Location5.01 MI W of FM 39
RouteCounty Highway 102
CountyGrimes County
StateTexas
Coordinates30.81082, -96.17406
Functional classRural 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating57 US tons
Inventory rating41 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans3
Design loadUnknown
Structure length81 ft (24.7 m)
Longest span28 ft (8.5 m)
Deck width16 ft (5 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2016)
Projected traffic150 by 2038
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$3,000
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 102 over Navasota River Relief built?

It was built in 1991, making it 34 years old in 2025.

What condition is CR 102 over Navasota River Relief 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 February 2024.

How much traffic does CR 102 over Navasota River Relief carry?

About 140 vehicles per day (2016 count).

How long is CR 102 over Navasota River Relief?

The structure is 81 ft (24.7 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns CR 102 over Navasota River Relief?

It is owned by the County Highway Agency.